{"id":251712,"date":"2022-08-17T12:55:04","date_gmt":"2022-08-17T10:55:04","guid":{"rendered":"https:\/\/www.cined.com\/?p=251712"},"modified":"2022-08-17T20:27:44","modified_gmt":"2022-08-17T18:27:44","slug":"arri-alexa-35-lab-test-rolling-shutter-dynamic-range-and-latitude-plus-video","status":"publish","type":"post","link":"https:\/\/staging.cined.dev\/es\/arri-alexa-35-lab-test-rolling-shutter-dynamic-range-and-latitude-plus-video\/","title":{"rendered":"Prueba de laboratorio de la ARRI ALEXA 35 &#8211; Rolling Shutter, rango din\u00e1mico y latitud, \u00a1m\u00e1s video!"},"content":{"rendered":"\n<p class=\"has-drop-cap\"><strong>S\u00ed, la nueva ARRI ALEXA 35 ha llegado a la sede de CineD! Todos est\u00e1bamos muy entusiasmados de tener en nuestras manos esta nueva estrella en el universo de las c\u00e1maras y de los curiosos que quieren saber qu\u00e9 tiene para ofrecer. Adem\u00e1s, esper\u00e1bamos obtener un nuevo punto de referencia de prueba de laboratorio. \u00bfTe interesa conocer nuestros resultados? Entonces, \u00a1vamos a sumergirnos en nuestra prueba de laboratorio de la ARRI ALEXA 35!<\/strong><\/p><251712-inline-buylinks\/>\n\n\n\n<p>Cada vez que llega una nueva c\u00e1mara de cine a nuestro laboratorio, no vemos la hora de ponerla a prueba, como la \u00faltima vez que lleg\u00f3 la <a href=\"https:\/\/www.cined.com\/sony-venice-2-lab-test-rolling-shutter-dynamic-range-and-latitude\/\" target=\"_blank\" rel=\"noreferrer noopener\">Sony VENICE 2<\/a> que marc\u00f3 un nuevo e impresionante m\u00ednimo hist\u00f3rico para el rendimiento del rolling shutter (&lt; 3ms en full-frame). Como la c\u00e1mara ARRI ALEXA estableci\u00f3 el punto de referencia actual en t\u00e9rminos de rango din\u00e1mico (con m\u00e1s de 14 paradas), casi no pod\u00edamos creer las afirmaciones de ARRI de que la nueva ALEXA 35 lleva el rango din\u00e1mico a unas incre\u00edbles 17 paradas.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/DSC00468-640x360.jpg\" alt=\"\" class=\"wp-image-250319\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00468-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00468-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00468-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00468-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00468-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00468-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00468-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00468.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 en el estudio de CineD. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Esta vez tenemos una ventaja adicional para ti, ya que Nino y yo tambi\u00e9n hablamos sobre los resultados de las pruebas de laboratorio en un video. Adem\u00e1s, di una vuelta con la ALEXA 35 y grab\u00e9 un mini documental junto con mi hija. No pude resistir la tentaci\u00f3n cuando Nino dijo con una voz bastante informal: &#8220;\u00bfPor qu\u00e9 no te la llevas el fin de semana, si quieres?&#8221;.<\/p>\n\n\n\n<p>Entonces, \u00a1manos a la obra! Una vez m\u00e1s, un gran \u201cgracias\u201d a mi querido colega Florian Milz de CineD, quien me ayud\u00f3 a obtener esta toma de prueba de laboratorio. Aqu\u00ed hay una foto de nosotros dos, posando con la ALEXA 35 (lo siento, solo sentimos que ten\u00edamos que hacerlo ;-))<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/DSC00515-640x360.jpg\" alt=\"\" class=\"wp-image-250322\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00515-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00515-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00515-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00515-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00515-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00515-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00515-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00515.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>Prueba de laboratorio de la ARRI ALEXA 35. Gunther (izquierda) y Florian (derecha): el equipo de pruebas de laboratorio. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\">Rolling Shutter de la ALEXA 35<\/h2>\n\n\n\n<p>Utilizando nuestro m\u00e9todo est\u00e1ndar para medir el rolling shutter con una luz estrobosc\u00f3pica, obtuvimos 7.9ms en modo open gate 3:2 4608 \u00d7 3164 (dej\u00e9 las barras negras a la derecha y a la izquierda para indicar &#8220;open gate&#8221;):<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms-640x360.jpg\" alt=\"\" class=\"wp-image-250327\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>Rolling shutter de la ALEXA 35 en el modo \u201copen gate\u201d. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Este es un muy buen resultado (menos es m\u00e1s). Una ventana de 4.6K 16:9 (ancho total del sensor) se traduce en 5.7ms. Sin embargo, el puesto n\u00b01 en t\u00e9rminos de rolling shutter sigue siendo de la  <a href=\"https:\/\/www.bhphotovideo.com\/c\/product\/1381355-REG\/sony_mpc3610_venice_6k_motion_picture.html\/BI\/7953\/KBID\/8488\/SID\/gunther\/\" class=\"content-keyword-linked\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Sony VENICE<\/a> 2 (full-frame) con menos de 3ms.<\/p>\n\n\n\n<p>En el modo 4K 16:9 (que en realidad es 4096\u00d72304), la imagen se recorta ligeramente y obtenemos 7.6ms de 24 a 120 cuadros por segundo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Rango din\u00e1mico de la ALEXA 35<\/h2>\n\n\n\n<p>Ahora, aqu\u00ed es donde las cosas se ponen interesantes. \u00bfPodremos ver las 17 paradas de las que habla la compa\u00f1\u00eda? De hecho, me preocup\u00e9 bastante cuando ARRI mencion\u00f3 en su comunicado de prensa algo as\u00ed como 1.5 paradas de mejor rendimiento, ya que esto podr\u00eda implicar un recorte del primer parche del diagrama de pasos Xyla21 que usamos para nuestras pruebas. La versi\u00f3n del firmware de la c\u00e1mara era 1.00.03.<\/p>\n\n\n\n<p>Si no sabes c\u00f3mo probamos el rango din\u00e1mico, puedes echar un vistazo <a href=\"https:\/\/www.cined.com\/es\/the-cinema5d-camera-lab-is-back-dynamic-range-tests\/\" target=\"_blank\" rel=\"noreferrer noopener\">aqu\u00ed<\/a>.<\/p>\n\n\n\n<p>Finalmente en el laboratorio todo sali\u00f3 bien, pero estuvo cerca. Si alg\u00fan fabricante de c\u00e1maras lanza la pr\u00f3xima c\u00e1mara con un rendimiento a\u00fan mejor en las luces altas, tendremos un problema\u2026<\/p>\n\n\n\n<p><strong>Forma de onda de la ARRI ALEXA 35 en el modo open gate ARRIRAW EI800<\/strong><\/p>\n\n\n\n<p>El gr\u00e1fico de forma de onda de Xyla21 muestra unas asombrosas 16 paradas por encima del ruido de fondo:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"279\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI800-640x279.jpg\" alt=\"\" class=\"wp-image-250331\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI800-640x279.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI800-300x131.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI800-768x335.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI800-528x230.jpg 528w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI800.jpg 1484w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>Gr\u00e1fico de forma de onda de la ALEXA 35 en ARRIRAW EI800. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Tambi\u00e9n son visibles una s\u00f3lida parada 17 dentro del piso de ruido, as\u00ed como una parada 18 y 19. \u00a1Estamos cerca del l\u00edmite de nuestro gr\u00e1fico Xyla21 de 21 paradas!<\/p>\n\n\n\n<p>Como podr\u00e1s ver, la nueva curva LogC4 distribuye la parada de manera diferente a las curvas ARRI Log anteriores. Por lo tanto, ARRI proporciona un conjunto completamente nuevo de LUT para la ALEXA 35 que tambi\u00e9n hemos utilizado.<\/p>\n\n\n\n<p><strong>Ech\u00e9mosle un vistazo a los resultados IMATEST<\/strong>: obtuvimos 15.1 paradas con una relaci\u00f3n se\u00f1al-ruido (SNR) de 2 y 16.3 paradas con SNR = 1<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"560\" height=\"600\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/ALEXA-35-EI800-ARRIRAW_1.1.2_Step_2.jpg\" alt=\"\" class=\"wp-image-250312\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI800-ARRIRAW_1.1.2_Step_2.jpg 560w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI800-ARRIRAW_1.1.2_Step_2-300x321.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI800-ARRIRAW_1.1.2_Step_2-215x230.jpg 215w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><figcaption>Resultado IMATEST para ARRIRAW ALEXA 35 EI800. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Esto es asombroso: \u00a1un nuevo punto de referencia para nuestra prueba de laboratorio! Comparando con la ALEXA  <a href=\"https:\/\/www.bhphotovideo.com\/c\/product\/1470346-REG\/arri_k1_0024074_alexa_mini_lf_camera.html\/BI\/7953\/KBID\/8488\/SID\/gunther\/\" class=\"content-keyword-linked\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Mini LF<\/a> que probamos <a href=\"https:\/\/www.cined.com\/es\/arri-alexa-classic-mini-lf-lab-test-rolling-shutter-dynamic-range-and-latitude\/\" target=\"_blank\" rel=\"noreferrer noopener\">aqu\u00ed<\/a>, es aproximadamente 1.7 paradas mejor en SNR = 2 y 1.4 paradas mejor en SNR = 1 (la ALEXA  Mini LF obtuvo 13.4 paradas en SNR = 2 y 14.7 paradas en SNR = 1 para ARRIRAW).<\/p>\n\n\n\n<p>Por cierto, ProRes 4444 XQ mostr\u00f3 resultados muy similares, aqu\u00ed est\u00e1 el gr\u00e1fico IMATEST:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"560\" height=\"600\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/ALEXA-35-EI800-ProResXQ-4444_1.6.1_Step_2.jpg\" alt=\"\" class=\"wp-image-250334\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI800-ProResXQ-4444_1.6.1_Step_2.jpg 560w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI800-ProResXQ-4444_1.6.1_Step_2-300x321.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI800-ProResXQ-4444_1.6.1_Step_2-215x230.jpg 215w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><figcaption>Resultado IMATEST para ProRes 4444 XQ ALEXA 35. Cr\u00e9dito de imagen: Cined<\/figcaption><\/figure><\/div>\n\n\n<p>Por curiosidad, verifiqu\u00e9 tambi\u00e9n EI400, 1600 y 3200 e IMATEST mostr\u00f3 casi exactamente los mismos resultados. Aqu\u00ed est\u00e1 el resultado para ARRIRAW en EI3200:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"560\" height=\"600\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/ALEXA-35-EI3200-ARRIRAW_1.4.1_Step_2.jpg\" alt=\"\" class=\"wp-image-250338\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI3200-ARRIRAW_1.4.1_Step_2.jpg 560w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI3200-ARRIRAW_1.4.1_Step_2-300x321.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI3200-ARRIRAW_1.4.1_Step_2-215x230.jpg 215w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><figcaption>Resultado IMATEST para ARRIRAW ALEXA 35 EI800. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Lo que sucede cuando cambia el \u00edndice de exposici\u00f3n (EI) es b\u00e1sicamente que los valores de la se\u00f1al se distribuyen de manera diferente a lo largo del archivo de 12 bits (ProRes 4444 XQ) o de 13 bits (ARRIRAW), como se puede ver en la siguiente forma de onda para EI3200 en ARRIRAW (el recorte se produce con la misma combinaci\u00f3n de ajustes del iris del lente y del obturador para una velocidad de cuadros dada):<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"276\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI3200-640x276.jpg\" alt=\"\" class=\"wp-image-250315\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI3200-640x276.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI3200-300x129.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI3200-768x331.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI3200-534x230.jpg 534w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI3200.jpg 1486w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>Forma de onda Xyla21 para la ALEXA 35 en EI3200. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Aqu\u00ed, las paradas 17, 18 y 19 son a\u00fan m\u00e1s visibles, ya que los valores de los c\u00f3digos son m\u00e1s altos.<\/p>\n\n\n\n<p>\u00a1Vaya, qu\u00e9 buen resultado!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Prueba de latitud de la ARRI ALEXA 35<\/h2>\n\n\n\n<p>La latitud es la capacidad de una c\u00e1mara para retener detalles y colores cuando est\u00e1 sobreexpuesta o subexpuesta y retrocede a la exposici\u00f3n base. Hace un tiempo atr\u00e1s, elegimos un valor arbitrario del 60% del valor de luminancia (en la forma de onda) para las caras de nuestros sujetos (en realidad, la frente) en nuestra escena de estudio est\u00e1ndar. Esta exposici\u00f3n base de CineD ayuda a nuestros lectores a obtener un punto de referencia para todas las c\u00e1maras probadas, independientemente de c\u00f3mo distribuyan los valores de c\u00f3digo y qu\u00e9 modo LOG se utilice.<\/p>\n\n\n\n<p>En la imagen a continuaci\u00f3n podr\u00e1s ver nuestra escena de exposici\u00f3n base con la ALEXA 35, usando la curva ARRI_LogC4-to-gamma24_Rec709-D65_v1-65 en combinaci\u00f3n con las siguientes configuraciones de DaVinci Resolve (Versi\u00f3n 18.0.1):<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"138\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/ARRIRAW-Development-settings-for-latitude-640x138.jpg\" alt=\"\" class=\"wp-image-250345\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ARRIRAW-Development-settings-for-latitude-640x138.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ARRIRAW-Development-settings-for-latitude-300x65.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ARRIRAW-Development-settings-for-latitude-768x166.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ARRIRAW-Development-settings-for-latitude-1066x230.jpg 1066w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ARRIRAW-Development-settings-for-latitude.jpg 1289w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>Configuraci\u00f3n de DVR para ARRIRAW. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1-640x360.jpg\" alt=\"\" class=\"wp-image-250297\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Ahora, comenzamos a sobreexponer la imagen. Desafortunadamente, a pesar de cambiar la bombilla de nuestra luz de estudio a una 2.5 veces m\u00e1s fuerte (softbox y todo lo dem\u00e1s igual), y usando un lente Canon 50mm f1.2, no pudimos obtener el canal rojo en la frente de Nino ni siquiera cerca del recorte (la imagen s\u00f3lo tiene aplicado un LUT, no est\u00e1 corregida para que puedas darte una idea de la sobreexposici\u00f3n; puedes verlo tambi\u00e9n en el video):<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1-640x360.jpg\" alt=\"\" class=\"wp-image-250300\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 4 paradas por encima de la exposici\u00f3n base, utilizando un LUT REC709 LogC4. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"291\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Latitude-waveform-4-over-640x291.jpg\" alt=\"\" class=\"wp-image-250348\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Latitude-waveform-4-over-640x291.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Latitude-waveform-4-over-300x137.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Latitude-waveform-4-over-768x350.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Latitude-waveform-4-over-505x230.jpg 505w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Latitude-waveform-4-over.jpg 846w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 4 paradas por encima de la exposici\u00f3n base, forma de onda sin gradar. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Como ver\u00e1s, hay aproximadamente 1 espacio de parada para el canal rojo en la frente de Nino. Volviendo a la exposici\u00f3n base, obtuvimos esta imagen:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1-640x360.jpg\" alt=\"\" class=\"wp-image-250303\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 4 paradas, regresadas a la exposici\u00f3n base. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Debimos tener eso en cuenta cuando empezamos a subexponer.<\/p>\n\n\n\n<p>Veamos qu\u00e9 ocurre a 4 paradas debajo, regresadas a cero:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1-640x360.jpg\" alt=\"\" class=\"wp-image-250306\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 4 paradas por debajo, regresadas a la exposici\u00f3n base. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>S\u00f3lo para aclarar, ya alcanzamos las 9 paradas de latitud de exposici\u00f3n (4 por encima a 4 por debajo, m\u00e1s 1 parada adicional en las luces altas). Todas las dem\u00e1s c\u00e1maras, incluyendo la  Sony VENICE 2, se estaban desmoronando en ese nivel de latitud (salvo la ALEXA  Mini LF que mostraba 10 paradas de latitud de exposici\u00f3n).<\/p>\n\n\n\n<p>As\u00ed que saltemos a las 7 paradas de subexposici\u00f3n regresadas a cero:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1-640x360.jpg\" alt=\"\" class=\"wp-image-250285\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 7 paradas por debajo, regresadas a la exposici\u00f3n base. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Esta es la primera vez que comienza a aparecer un ruido grave que ya no es tolerable sin la reducci\u00f3n de ruido. Para juzgarlo por ti mismo, puedes echarle un vistazo al video de arriba.<\/p>\n\n\n\n<p>La reducci\u00f3n de ruido logra eliminar f\u00e1cilmente este ruido:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1-640x360.jpg\" alt=\"\" class=\"wp-image-250309\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 7 paradas por debajo, regresadas a la exposici\u00f3n base, usando NR. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"309\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-7-under-640x309.jpg\" alt=\"\" class=\"wp-image-250363\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-7-under-640x309.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-7-under-300x145.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-7-under-768x371.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-7-under-476x230.jpg 476w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-7-under.jpg 787w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>Configuraciones de reducci\u00f3n de ruido en DaVinci Resolve 18 para 7 paradas por debajo. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Lo que se puede notar es que los colores comienzan a desvanecerse, y esto es especialmente visible en la camisa de Nino (aumentando el realce de color, por ejemplo, esto se corrige f\u00e1cilmente).<\/p>\n\n\n\n<p>\u00a1Recuerda que hemos alcanzado (4 por encima de 7 por debajo m\u00e1s 1) = 12 paradas de latitud de exposici\u00f3n! Esto ya es 2 paradas m\u00e1s que la mejor c\u00e1mara jam\u00e1s probada, la ALEXA  Mini LF.<\/p>\n\n\n\n<p>Ahora veamos la imagen subexpuesta a 8 paradas:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1-640x360.jpg\" alt=\"\" class=\"wp-image-250291\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 8 paradas por debajo, regresadas a cero. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>El ruido comienza a corromper la imagen hasta el punto de que se vuelve inutilizable. Veamos si la reducci\u00f3n de ruido puede salvarla:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1-640x360.jpg\" alt=\"\" class=\"wp-image-250288\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 8 paradas por debajo, regresadas a cero, usando NR. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"317\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-8-under-640x317.jpg\" alt=\"\" class=\"wp-image-250366\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-8-under-640x317.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-8-under-300x149.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-8-under-768x381.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-8-under-464x230.jpg 464w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-8-under.jpg 787w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>Configuraciones de reducci\u00f3n de ruido en DaVinci Resolve 18 para 8 paradas por debajo. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>La reducci\u00f3n de ruido no puede salvar la imagen sin destruir todos los detalles. \u00a1Fin del juego! Juego terminado a 13 paradas de latitud de exposici\u00f3n\u2026 \u00bfNo es asombroso? Debo admitir que la imagen todav\u00eda se ve sorprendentemente bien.<\/p>\n\n\n\n<p>Como era de esperar, en ProRes 4444 XQ los resultados son un poco peores: en ARRIRAW obtenemos 13 bits a nuestra disposici\u00f3n, en ProRes 4444 XQ &#8220;solo&#8221; 12 bits. Esto se muestra especialmente en las paradas de sombra ruidosas cuando se sobreexponen.<\/p>\n\n\n\n<p>Aqu\u00ed est\u00e1 la imagen subexpuesta a 8 paradas con reducci\u00f3n de ruido para EI800 en ProRes 4444 XQ:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1-640x360.jpg\" alt=\"\" class=\"wp-image-250371\" width=\"640\" height=\"360\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 8 paradas por debajo, regresadas a cero, usando NR. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>En resumen, obtuvimos 12 paradas de latitud de exposici\u00f3n, \u00a1con cierto margen de maniobra hacia una parada 13! Asombroso. A modo de referencia, la ALEXA  <a href=\"https:\/\/www.bhphotovideo.com\/c\/product\/1470346-REG\/arri_k1_0024074_alexa_mini_lf_camera.html\/BI\/7953\/KBID\/8488\/SID\/gunther\/\" class=\"content-keyword-linked\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Mini LF<\/a> ten\u00eda 10 paradas, la  Sony VENICE 2 ten\u00eda 9 paradas, la FUJIFILM X-H2S se acerca a las 9 y la mayor\u00eda de las otras c\u00e1maras tienen entre 7 y 8 paradas de latitud de exposici\u00f3n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Prueba de laboratorio de la ARRI ALEXA 35 \u2013 Resumen<\/h2>\n\n\n\n<p>Tal como esper\u00e1bamos, la <a href=\"https:\/\/www.bhphotovideo.com\/c\/product\/1708577-REG\/arri_k0_0042900_alexa_35_body.html\/BI\/7953\/KBID\/8488\/SID\/gunther\" target=\"_blank\" rel=\"noreferrer noopener\">ARRI ALEXA 35<\/a> establece un nuevo punto de referencia en nuestra prueba de laboratorio en t\u00e9rminos de rango din\u00e1mico y latitud. ARRI sostiene que alcanza las 17 paradas pero en realidad, esta parada ya se encuentra dentro del piso de ruido, como podr\u00e1s ver en los gr\u00e1ficos de formas de onda de arriba. Sin embargo, con ARRIRAW de 13 bits usando algo de reducci\u00f3n de ruido, \u00a1esta parada es utilizable!<\/p>\n\n\n\n<p>Ser\u00e1 interesante ver si otros fabricantes de c\u00e1maras pueden seguir remotamente a nuestro nuevo (y viejo) l\u00edder del grupo.<\/p>\n\n\n\n<p>En el video de arriba, como material adicional, inclu\u00ed un mini documental que grab\u00e9 junto con mi hija que te permitir\u00e1 ver algunas im\u00e1genes del mundo real.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Las Bases de Datos de CineD se lanzan HOY<\/h2>\n\n\n\n<p>Hoy lanzaremos nuestras <a href=\"https:\/\/www.cined.com\/databases\/\" target=\"_blank\" rel=\"noreferrer noopener\">Bases de Datos de CineD<\/a> que incluyen todos los resultados de las pruebas de laboratorio. \u00a1Est\u00e9n atentos a CineD en las pr\u00f3ximas horas para este <a href=\"https:\/\/www.cined.com\/es\/launching-cined-databases-camera-lens-databases-and-lens-coverage-tool\/\" target=\"_blank\" rel=\"noreferrer noopener\">lanzamiento masivo que incluye un video de lanzamiento y un art\u00edculo explicativo<\/a>!<\/p>\n\n\n\n<p><strong>\u00bfQu\u00e9 opinas de nuestra prueba de laboratorio de la ARRI Alexa 35? \u00a1Cu\u00e9ntanos en la secci\u00f3n de comentarios a continuaci\u00f3n!<\/strong><\/p>\n<251712-main-buylinks\/>","protected":false,"clean_render":"<p class=\"has-drop-cap\"><strong>S\u00ed, la nueva ARRI ALEXA 35 ha llegado a la sede de CineD! Todos est\u00e1bamos muy entusiasmados de tener en nuestras manos esta nueva estrella en el universo de las c\u00e1maras y de los curiosos que quieren saber qu\u00e9 tiene para ofrecer. Adem\u00e1s, esper\u00e1bamos obtener un nuevo punto de referencia de prueba de laboratorio. \u00bfTe interesa conocer nuestros resultados? Entonces, \u00a1vamos a sumergirnos en nuestra prueba de laboratorio de la ARRI ALEXA 35!<\/strong><\/p><251712-inline-buylinks\/>\n\n\n\n<p>Cada vez que llega una nueva c\u00e1mara de cine a nuestro laboratorio, no vemos la hora de ponerla a prueba, como la \u00faltima vez que lleg\u00f3 la <a href=\"https:\/\/www.cined.com\/sony-venice-2-lab-test-rolling-shutter-dynamic-range-and-latitude\/\" target=\"_blank\" rel=\"noreferrer noopener\">Sony VENICE 2<\/a> que marc\u00f3 un nuevo e impresionante m\u00ednimo hist\u00f3rico para el rendimiento del rolling shutter (&lt; 3ms en full-frame). Como la c\u00e1mara ARRI ALEXA estableci\u00f3 el punto de referencia actual en t\u00e9rminos de rango din\u00e1mico (con m\u00e1s de 14 paradas), casi no pod\u00edamos creer las afirmaciones de ARRI de que la nueva ALEXA 35 lleva el rango din\u00e1mico a unas incre\u00edbles 17 paradas.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/DSC00468-640x360.jpg\" alt=\"\" class=\"wp-image-250319\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00468-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00468-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00468-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00468-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00468-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00468-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00468-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00468.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 en el estudio de CineD. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Esta vez tenemos una ventaja adicional para ti, ya que Nino y yo tambi\u00e9n hablamos sobre los resultados de las pruebas de laboratorio en un video. Adem\u00e1s, di una vuelta con la ALEXA 35 y grab\u00e9 un mini documental junto con mi hija. No pude resistir la tentaci\u00f3n cuando Nino dijo con una voz bastante informal: &#8220;\u00bfPor qu\u00e9 no te la llevas el fin de semana, si quieres?&#8221;.<\/p>\n\n\n\n<p>Entonces, \u00a1manos a la obra! Una vez m\u00e1s, un gran \u201cgracias\u201d a mi querido colega Florian Milz de CineD, quien me ayud\u00f3 a obtener esta toma de prueba de laboratorio. Aqu\u00ed hay una foto de nosotros dos, posando con la ALEXA 35 (lo siento, solo sentimos que ten\u00edamos que hacerlo ;-))<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/DSC00515-640x360.jpg\" alt=\"\" class=\"wp-image-250322\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00515-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00515-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00515-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00515-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00515-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00515-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00515-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/DSC00515.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>Prueba de laboratorio de la ARRI ALEXA 35. Gunther (izquierda) y Florian (derecha): el equipo de pruebas de laboratorio. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\">Rolling Shutter de la ALEXA 35<\/h2>\n\n\n\n<p>Utilizando nuestro m\u00e9todo est\u00e1ndar para medir el rolling shutter con una luz estrobosc\u00f3pica, obtuvimos 7.9ms en modo open gate 3:2 4608 \u00d7 3164 (dej\u00e9 las barras negras a la derecha y a la izquierda para indicar &#8220;open gate&#8221;):<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms-640x360.jpg\" alt=\"\" class=\"wp-image-250327\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/RS-ARRI-ALEXA-35-Open-Gate-4.6K-7_9ms.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>Rolling shutter de la ALEXA 35 en el modo \u201copen gate\u201d. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Este es un muy buen resultado (menos es m\u00e1s). Una ventana de 4.6K 16:9 (ancho total del sensor) se traduce en 5.7ms. Sin embargo, el puesto n\u00b01 en t\u00e9rminos de rolling shutter sigue siendo de la  <a href=\"https:\/\/www.bhphotovideo.com\/c\/product\/1381355-REG\/sony_mpc3610_venice_6k_motion_picture.html\/BI\/7953\/KBID\/8488\/SID\/gunther\/\" class=\"content-keyword-linked\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Sony VENICE<\/a> 2 (full-frame) con menos de 3ms.<\/p>\n\n\n\n<p>En el modo 4K 16:9 (que en realidad es 4096\u00d72304), la imagen se recorta ligeramente y obtenemos 7.6ms de 24 a 120 cuadros por segundo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Rango din\u00e1mico de la ALEXA 35<\/h2>\n\n\n\n<p>Ahora, aqu\u00ed es donde las cosas se ponen interesantes. \u00bfPodremos ver las 17 paradas de las que habla la compa\u00f1\u00eda? De hecho, me preocup\u00e9 bastante cuando ARRI mencion\u00f3 en su comunicado de prensa algo as\u00ed como 1.5 paradas de mejor rendimiento, ya que esto podr\u00eda implicar un recorte del primer parche del diagrama de pasos Xyla21 que usamos para nuestras pruebas. La versi\u00f3n del firmware de la c\u00e1mara era 1.00.03.<\/p>\n\n\n\n<p>Si no sabes c\u00f3mo probamos el rango din\u00e1mico, puedes echar un vistazo <a href=\"https:\/\/www.cined.com\/es\/the-cinema5d-camera-lab-is-back-dynamic-range-tests\/\" target=\"_blank\" rel=\"noreferrer noopener\">aqu\u00ed<\/a>.<\/p>\n\n\n\n<p>Finalmente en el laboratorio todo sali\u00f3 bien, pero estuvo cerca. Si alg\u00fan fabricante de c\u00e1maras lanza la pr\u00f3xima c\u00e1mara con un rendimiento a\u00fan mejor en las luces altas, tendremos un problema\u2026<\/p>\n\n\n\n<p><strong>Forma de onda de la ARRI ALEXA 35 en el modo open gate ARRIRAW EI800<\/strong><\/p>\n\n\n\n<p>El gr\u00e1fico de forma de onda de Xyla21 muestra unas asombrosas 16 paradas por encima del ruido de fondo:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"279\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI800-640x279.jpg\" alt=\"\" class=\"wp-image-250331\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI800-640x279.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI800-300x131.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI800-768x335.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI800-528x230.jpg 528w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI800.jpg 1484w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>Gr\u00e1fico de forma de onda de la ALEXA 35 en ARRIRAW EI800. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Tambi\u00e9n son visibles una s\u00f3lida parada 17 dentro del piso de ruido, as\u00ed como una parada 18 y 19. \u00a1Estamos cerca del l\u00edmite de nuestro gr\u00e1fico Xyla21 de 21 paradas!<\/p>\n\n\n\n<p>Como podr\u00e1s ver, la nueva curva LogC4 distribuye la parada de manera diferente a las curvas ARRI Log anteriores. Por lo tanto, ARRI proporciona un conjunto completamente nuevo de LUT para la ALEXA 35 que tambi\u00e9n hemos utilizado.<\/p>\n\n\n\n<p><strong>Ech\u00e9mosle un vistazo a los resultados IMATEST<\/strong>: obtuvimos 15.1 paradas con una relaci\u00f3n se\u00f1al-ruido (SNR) de 2 y 16.3 paradas con SNR = 1<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"560\" height=\"600\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/ALEXA-35-EI800-ARRIRAW_1.1.2_Step_2.jpg\" alt=\"\" class=\"wp-image-250312\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI800-ARRIRAW_1.1.2_Step_2.jpg 560w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI800-ARRIRAW_1.1.2_Step_2-300x321.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI800-ARRIRAW_1.1.2_Step_2-215x230.jpg 215w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><figcaption>Resultado IMATEST para ARRIRAW ALEXA 35 EI800. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Esto es asombroso: \u00a1un nuevo punto de referencia para nuestra prueba de laboratorio! Comparando con la ALEXA  <a href=\"https:\/\/www.bhphotovideo.com\/c\/product\/1470346-REG\/arri_k1_0024074_alexa_mini_lf_camera.html\/BI\/7953\/KBID\/8488\/SID\/gunther\/\" class=\"content-keyword-linked\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Mini LF<\/a> que probamos <a href=\"https:\/\/www.cined.com\/es\/arri-alexa-classic-mini-lf-lab-test-rolling-shutter-dynamic-range-and-latitude\/\" target=\"_blank\" rel=\"noreferrer noopener\">aqu\u00ed<\/a>, es aproximadamente 1.7 paradas mejor en SNR = 2 y 1.4 paradas mejor en SNR = 1 (la ALEXA  Mini LF obtuvo 13.4 paradas en SNR = 2 y 14.7 paradas en SNR = 1 para ARRIRAW).<\/p>\n\n\n\n<p>Por cierto, ProRes 4444 XQ mostr\u00f3 resultados muy similares, aqu\u00ed est\u00e1 el gr\u00e1fico IMATEST:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"560\" height=\"600\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/ALEXA-35-EI800-ProResXQ-4444_1.6.1_Step_2.jpg\" alt=\"\" class=\"wp-image-250334\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI800-ProResXQ-4444_1.6.1_Step_2.jpg 560w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI800-ProResXQ-4444_1.6.1_Step_2-300x321.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI800-ProResXQ-4444_1.6.1_Step_2-215x230.jpg 215w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><figcaption>Resultado IMATEST para ProRes 4444 XQ ALEXA 35. Cr\u00e9dito de imagen: Cined<\/figcaption><\/figure><\/div>\n\n\n<p>Por curiosidad, verifiqu\u00e9 tambi\u00e9n EI400, 1600 y 3200 e IMATEST mostr\u00f3 casi exactamente los mismos resultados. Aqu\u00ed est\u00e1 el resultado para ARRIRAW en EI3200:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"560\" height=\"600\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/ALEXA-35-EI3200-ARRIRAW_1.4.1_Step_2.jpg\" alt=\"\" class=\"wp-image-250338\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI3200-ARRIRAW_1.4.1_Step_2.jpg 560w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI3200-ARRIRAW_1.4.1_Step_2-300x321.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ALEXA-35-EI3200-ARRIRAW_1.4.1_Step_2-215x230.jpg 215w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><figcaption>Resultado IMATEST para ARRIRAW ALEXA 35 EI800. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Lo que sucede cuando cambia el \u00edndice de exposici\u00f3n (EI) es b\u00e1sicamente que los valores de la se\u00f1al se distribuyen de manera diferente a lo largo del archivo de 12 bits (ProRes 4444 XQ) o de 13 bits (ARRIRAW), como se puede ver en la siguiente forma de onda para EI3200 en ARRIRAW (el recorte se produce con la misma combinaci\u00f3n de ajustes del iris del lente y del obturador para una velocidad de cuadros dada):<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"276\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI3200-640x276.jpg\" alt=\"\" class=\"wp-image-250315\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI3200-640x276.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI3200-300x129.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI3200-768x331.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI3200-534x230.jpg 534w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Waveform-Alexa-35-ARRIRAW-EI3200.jpg 1486w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>Forma de onda Xyla21 para la ALEXA 35 en EI3200. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Aqu\u00ed, las paradas 17, 18 y 19 son a\u00fan m\u00e1s visibles, ya que los valores de los c\u00f3digos son m\u00e1s altos.<\/p>\n\n\n\n<p>\u00a1Vaya, qu\u00e9 buen resultado!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Prueba de latitud de la ARRI ALEXA 35<\/h2>\n\n\n\n<p>La latitud es la capacidad de una c\u00e1mara para retener detalles y colores cuando est\u00e1 sobreexpuesta o subexpuesta y retrocede a la exposici\u00f3n base. Hace un tiempo atr\u00e1s, elegimos un valor arbitrario del 60% del valor de luminancia (en la forma de onda) para las caras de nuestros sujetos (en realidad, la frente) en nuestra escena de estudio est\u00e1ndar. Esta exposici\u00f3n base de CineD ayuda a nuestros lectores a obtener un punto de referencia para todas las c\u00e1maras probadas, independientemente de c\u00f3mo distribuyan los valores de c\u00f3digo y qu\u00e9 modo LOG se utilice.<\/p>\n\n\n\n<p>En la imagen a continuaci\u00f3n podr\u00e1s ver nuestra escena de exposici\u00f3n base con la ALEXA 35, usando la curva ARRI_LogC4-to-gamma24_Rec709-D65_v1-65 en combinaci\u00f3n con las siguientes configuraciones de DaVinci Resolve (Versi\u00f3n 18.0.1):<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"138\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/ARRIRAW-Development-settings-for-latitude-640x138.jpg\" alt=\"\" class=\"wp-image-250345\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ARRIRAW-Development-settings-for-latitude-640x138.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ARRIRAW-Development-settings-for-latitude-300x65.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ARRIRAW-Development-settings-for-latitude-768x166.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ARRIRAW-Development-settings-for-latitude-1066x230.jpg 1066w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/ARRIRAW-Development-settings-for-latitude.jpg 1289w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>Configuraci\u00f3n de DVR para ARRIRAW. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1-640x360.jpg\" alt=\"\" class=\"wp-image-250297\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-base-exp_1.19.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Ahora, comenzamos a sobreexponer la imagen. Desafortunadamente, a pesar de cambiar la bombilla de nuestra luz de estudio a una 2.5 veces m\u00e1s fuerte (softbox y todo lo dem\u00e1s igual), y usando un lente Canon 50mm f1.2, no pudimos obtener el canal rojo en la frente de Nino ni siquiera cerca del recorte (la imagen s\u00f3lo tiene aplicado un LUT, no est\u00e1 corregida para que puedas darte una idea de la sobreexposici\u00f3n; puedes verlo tambi\u00e9n en el video):<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1-640x360.jpg\" alt=\"\" class=\"wp-image-250300\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-LUT-only_1.1.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 4 paradas por encima de la exposici\u00f3n base, utilizando un LUT REC709 LogC4. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"291\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Latitude-waveform-4-over-640x291.jpg\" alt=\"\" class=\"wp-image-250348\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Latitude-waveform-4-over-640x291.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Latitude-waveform-4-over-300x137.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Latitude-waveform-4-over-768x350.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Latitude-waveform-4-over-505x230.jpg 505w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Latitude-waveform-4-over.jpg 846w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 4 paradas por encima de la exposici\u00f3n base, forma de onda sin gradar. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Como ver\u00e1s, hay aproximadamente 1 espacio de parada para el canal rojo en la frente de Nino. Volviendo a la exposici\u00f3n base, obtuvimos esta imagen:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1-640x360.jpg\" alt=\"\" class=\"wp-image-250303\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-over-pb_1.15.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 4 paradas, regresadas a la exposici\u00f3n base. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Debimos tener eso en cuenta cuando empezamos a subexponer.<\/p>\n\n\n\n<p>Veamos qu\u00e9 ocurre a 4 paradas debajo, regresadas a cero:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1-640x360.jpg\" alt=\"\" class=\"wp-image-250306\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-4-under-pb_1.23.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 4 paradas por debajo, regresadas a la exposici\u00f3n base. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>S\u00f3lo para aclarar, ya alcanzamos las 9 paradas de latitud de exposici\u00f3n (4 por encima a 4 por debajo, m\u00e1s 1 parada adicional en las luces altas). Todas las dem\u00e1s c\u00e1maras, incluyendo la  Sony VENICE 2, se estaban desmoronando en ese nivel de latitud (salvo la ALEXA  Mini LF que mostraba 10 paradas de latitud de exposici\u00f3n).<\/p>\n\n\n\n<p>As\u00ed que saltemos a las 7 paradas de subexposici\u00f3n regresadas a cero:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1-640x360.jpg\" alt=\"\" class=\"wp-image-250285\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb_1.26.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 7 paradas por debajo, regresadas a la exposici\u00f3n base. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Esta es la primera vez que comienza a aparecer un ruido grave que ya no es tolerable sin la reducci\u00f3n de ruido. Para juzgarlo por ti mismo, puedes echarle un vistazo al video de arriba.<\/p>\n\n\n\n<p>La reducci\u00f3n de ruido logra eliminar f\u00e1cilmente este ruido:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1-640x360.jpg\" alt=\"\" class=\"wp-image-250309\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-7-under-pb-NR_1.29.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 7 paradas por debajo, regresadas a la exposici\u00f3n base, usando NR. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"309\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-7-under-640x309.jpg\" alt=\"\" class=\"wp-image-250363\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-7-under-640x309.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-7-under-300x145.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-7-under-768x371.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-7-under-476x230.jpg 476w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-7-under.jpg 787w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>Configuraciones de reducci\u00f3n de ruido en DaVinci Resolve 18 para 7 paradas por debajo. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Lo que se puede notar es que los colores comienzan a desvanecerse, y esto es especialmente visible en la camisa de Nino (aumentando el realce de color, por ejemplo, esto se corrige f\u00e1cilmente).<\/p>\n\n\n\n<p>\u00a1Recuerda que hemos alcanzado (4 por encima de 7 por debajo m\u00e1s 1) = 12 paradas de latitud de exposici\u00f3n! Esto ya es 2 paradas m\u00e1s que la mejor c\u00e1mara jam\u00e1s probada, la ALEXA  Mini LF.<\/p>\n\n\n\n<p>Ahora veamos la imagen subexpuesta a 8 paradas:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1-640x360.jpg\" alt=\"\" class=\"wp-image-250291\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb_1.27.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 8 paradas por debajo, regresadas a cero. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>El ruido comienza a corromper la imagen hasta el punto de que se vuelve inutilizable. Veamos si la reducci\u00f3n de ruido puede salvarla:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1-640x360.jpg\" alt=\"\" class=\"wp-image-250288\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-8-under-pb-NR_1.30.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 8 paradas por debajo, regresadas a cero, usando NR. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"317\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-8-under-640x317.jpg\" alt=\"\" class=\"wp-image-250366\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-8-under-640x317.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-8-under-300x149.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-8-under-768x381.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-8-under-464x230.jpg 464w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Arriraw-DVR-noise-red-8-under.jpg 787w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>Configuraciones de reducci\u00f3n de ruido en DaVinci Resolve 18 para 8 paradas por debajo. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>La reducci\u00f3n de ruido no puede salvar la imagen sin destruir todos los detalles. \u00a1Fin del juego! Juego terminado a 13 paradas de latitud de exposici\u00f3n\u2026 \u00bfNo es asombroso? Debo admitir que la imagen todav\u00eda se ve sorprendentemente bien.<\/p>\n\n\n\n<p>Como era de esperar, en ProRes 4444 XQ los resultados son un poco peores: en ARRIRAW obtenemos 13 bits a nuestra disposici\u00f3n, en ProRes 4444 XQ &#8220;solo&#8221; 12 bits. Esto se muestra especialmente en las paradas de sombra ruidosas cuando se sobreexponen.<\/p>\n\n\n\n<p>Aqu\u00ed est\u00e1 la imagen subexpuesta a 8 paradas con reducci\u00f3n de ruido para EI800 en ProRes 4444 XQ:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1-640x360.jpg\" alt=\"\" class=\"wp-image-250371\" width=\"640\" height=\"360\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1-640x360.jpg 640w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/Alexa-35-ProRes-8-under-pb-NR_1.48.1.jpg 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>La ALEXA 35 a 8 paradas por debajo, regresadas a cero, usando NR. Cr\u00e9dito de imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>En resumen, obtuvimos 12 paradas de latitud de exposici\u00f3n, \u00a1con cierto margen de maniobra hacia una parada 13! Asombroso. A modo de referencia, la ALEXA  <a href=\"https:\/\/www.bhphotovideo.com\/c\/product\/1470346-REG\/arri_k1_0024074_alexa_mini_lf_camera.html\/BI\/7953\/KBID\/8488\/SID\/gunther\/\" class=\"content-keyword-linked\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Mini LF<\/a> ten\u00eda 10 paradas, la  Sony VENICE 2 ten\u00eda 9 paradas, la FUJIFILM X-H2S se acerca a las 9 y la mayor\u00eda de las otras c\u00e1maras tienen entre 7 y 8 paradas de latitud de exposici\u00f3n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Prueba de laboratorio de la ARRI ALEXA 35 \u2013 Resumen<\/h2>\n\n\n\n<p>Tal como esper\u00e1bamos, la <a href=\"https:\/\/www.bhphotovideo.com\/c\/product\/1708577-REG\/arri_k0_0042900_alexa_35_body.html\/BI\/7953\/KBID\/8488\/SID\/gunther\" target=\"_blank\" rel=\"noreferrer noopener\">ARRI ALEXA 35<\/a> establece un nuevo punto de referencia en nuestra prueba de laboratorio en t\u00e9rminos de rango din\u00e1mico y latitud. ARRI sostiene que alcanza las 17 paradas pero en realidad, esta parada ya se encuentra dentro del piso de ruido, como podr\u00e1s ver en los gr\u00e1ficos de formas de onda de arriba. Sin embargo, con ARRIRAW de 13 bits usando algo de reducci\u00f3n de ruido, \u00a1esta parada es utilizable!<\/p>\n\n\n\n<p>Ser\u00e1 interesante ver si otros fabricantes de c\u00e1maras pueden seguir remotamente a nuestro nuevo (y viejo) l\u00edder del grupo.<\/p>\n\n\n\n<p>En el video de arriba, como material adicional, inclu\u00ed un mini documental que grab\u00e9 junto con mi hija que te permitir\u00e1 ver algunas im\u00e1genes del mundo real.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Las Bases de Datos de CineD se lanzan HOY<\/h2>\n\n\n\n<p>Hoy lanzaremos nuestras <a href=\"https:\/\/www.cined.com\/databases\/\" target=\"_blank\" rel=\"noreferrer noopener\">Bases de Datos de CineD<\/a> que incluyen todos los resultados de las pruebas de laboratorio. \u00a1Est\u00e9n atentos a CineD en las pr\u00f3ximas horas para este <a href=\"https:\/\/www.cined.com\/es\/launching-cined-databases-camera-lens-databases-and-lens-coverage-tool\/\" target=\"_blank\" rel=\"noreferrer noopener\">lanzamiento masivo que incluye un video de lanzamiento y un art\u00edculo explicativo<\/a>!<\/p>\n\n\n\n<p><strong>\u00bfQu\u00e9 opinas de nuestra prueba de laboratorio de la ARRI Alexa 35? \u00a1Cu\u00e9ntanos en la secci\u00f3n de comentarios a continuaci\u00f3n!<\/strong><\/p>\n<251712-main-buylinks\/>"},"excerpt":{"rendered":"<p>S\u00ed, la nueva ARRI ALEXA 35 ha llegado a la sede de CineD! Todos est\u00e1bamos muy entusiasmados de tener en nuestras manos esta nueva estrella en el universo de las c\u00e1maras y de los curiosos que quieren saber qu\u00e9 tiene para ofrecer. Adem\u00e1s, esper\u00e1bamos obtener un nuevo punto de referencia de prueba de laboratorio. \u00bfTe interesa conocer nuestros resultados? Entonces, \u00a1vamos a sumergirnos en nuestra prueba de laboratorio de la ARRI ALEXA 35! Cada vez que llega una nueva c\u00e1mara de cine a nuestro laboratorio, no vemos la hora de ponerla a prueba, como la \u00faltima vez que lleg\u00f3 la Sony VENICE 2 que marc\u00f3 un nuevo e impresionante m\u00ednimo [&hellip;]<\/p>\n","protected":false},"author":8845,"featured_media":251619,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"video","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[{"id":42287,"name":"Pruebas de Laboratorio","link":"https:\/\/staging.cined.dev\/es\/pruebas-de-laboratorio\/","slug":"pruebas-de-laboratorio"},{"id":42285,"name":"Lab Tests","link":"https:\/\/staging.cined.dev\/lab-tests\/","slug":"lab-tests"}],"tags":[58800,319,65800,625,65801,3774,66283,4959,66514,67025,34229,67026,37196],"tag_label":[52737],"brand":[52829],"class_list":["post-251712","post","type-post","status-publish","format-video","has-post-thumbnail","hentry","category-lab-tests","tag-dynamic-range-test","tag-arri","tag-arri-alexa-35","tag-rolling-shutter","tag-alexa-35-cinema-camera","tag-latitude","tag-alexa-35","tag-lab-test","tag-rango-dinamico-2","tag-alexa-35-lab-test","tag-prueba-de-laboratorio","tag-alexa-dynamic-range-test","tag-latitud","post_format-post-format-video","tag_label-lab-test","brand-arri"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.10 (Yoast SEO v25.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Prueba de laboratorio de la ARRI ALEXA 35 - Rolling Shutter, rango din\u00e1mico y latitud, \u00a1m\u00e1s video! | CineD<\/title>\n<meta name=\"description\" content=\"Check out CineD&#039;s ARRI ALEXA 35 lab test for rolling shutter, dynamic range, and latitude in ProRes 4444 XQ and ARRIRAW\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/staging.cined.dev\/es\/arri-alexa-35-lab-test-rolling-shutter-dynamic-range-and-latitude-plus-video\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Prueba de laboratorio de la ARRI ALEXA 35 - Rolling Shutter, rango din\u00e1mico y latitud, \u00a1m\u00e1s video! | CineD\" \/>\n<meta property=\"og:description\" content=\"Check out CineD&#039;s ARRI ALEXA 35 lab test for rolling shutter, dynamic range, and latitude in ProRes 4444 XQ and ARRIRAW\" \/>\n<meta property=\"og:url\" content=\"https:\/\/staging.cined.dev\/es\/arri-alexa-35-lab-test-rolling-shutter-dynamic-range-and-latitude-plus-video\/\" \/>\n<meta property=\"og:site_name\" content=\"CineD\" \/>\n<meta property=\"article:publisher\" content=\"http:\/\/www.facebook.com\/C5Dnews\" \/>\n<meta property=\"article:published_time\" content=\"2022-08-17T10:55:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-08-17T18:27:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.cined.com\/content\/uploads\/2022\/08\/CineD_Alexa35-Thumbnail.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1080\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Gunther Machu\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@GunMac\" \/>\n<meta name=\"twitter:site\" content=\"@c5dnews\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Gunther Machu\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"13 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/staging.cined.dev\/es\/arri-alexa-35-lab-test-rolling-shutter-dynamic-range-and-latitude-plus-video\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/staging.cined.dev\/es\/arri-alexa-35-lab-test-rolling-shutter-dynamic-range-and-latitude-plus-video\/\"},\"author\":{\"name\":\"Gunther Machu\",\"@id\":\"https:\/\/www.cined.com\/#\/schema\/person\/6b456bcc9e28f338bf91c8ce3ee8406b\"},\"headline\":\"Prueba de laboratorio de la ARRI ALEXA 35 &#8211; Rolling Shutter, rango din\u00e1mico y latitud, \u00a1m\u00e1s video!\",\"datePublished\":\"2022-08-17T10:55:04+00:00\",\"dateModified\":\"2022-08-17T18:27:44+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/staging.cined.dev\/es\/arri-alexa-35-lab-test-rolling-shutter-dynamic-range-and-latitude-plus-video\/\"},\"wordCount\":2036,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.cined.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/staging.cined.dev\/es\/arri-alexa-35-lab-test-rolling-shutter-dynamic-range-and-latitude-plus-video\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/staging.cined.dev\/content\/uploads\/2022\/08\/CineD_Alexa35-Thumbnail.jpg\",\"keywords\":[\"dynamic range test\",\"arri\",\"ARRI ALEXA 35\",\"rolling shutter\",\"ALEXA 35 cinema camera\",\"latitude\",\"ALEXA 35\",\"lab test\",\"rango dinamico\",\"alexa 35 lab test\",\"prueba de laboratorio\",\"alexa dynamic range test\",\"latitud\"],\"articleSection\":[\"Lab Tests\"],\"inLanguage\":\"es-ES\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/staging.cined.dev\/es\/arri-alexa-35-lab-test-rolling-shutter-dynamic-range-and-latitude-plus-video\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/staging.cined.dev\/es\/arri-alexa-35-lab-test-rolling-shutter-dynamic-range-and-latitude-plus-video\/\",\"url\":\"https:\/\/staging.cined.dev\/es\/arri-alexa-35-lab-test-rolling-shutter-dynamic-range-and-latitude-plus-video\/\",\"name\":\"Prueba de laboratorio de la ARRI ALEXA 35 - Rolling Shutter, rango din\u00e1mico y latitud, \u00a1m\u00e1s video! 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Compra con nuestros socios.<\/h4>\n\t\t\t\t<h2>Apoya a CineD. Compra con nuestros socios.<\/h2>\n\t\t\t\t<span class=\"sub-content\">Nuestras rese\u00f1as siempre son imparciales.<\/span>\n\t\t\t\t<div class=\"clear\"><\/div>\n\t\t\t\t<a href=\"https:\/\/www.cined.com\/es\/nuestros-principios\/\" class=\"affiliates-button\">Conoce m\u00e1s sobre nuestros principios<\/a>\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n\t<div class=\"alternative-links-inner link-initial\"><div class=\"row\"><div class=\"col l9 m12 s12 offset-l3\"><header>ALEXA 35 Body & ARRI PL Mount Set (LBUS)<\/header><\/div><\/div><div class=\"row\"><div class=\"col l3 m12 s12 alternative-links-thumb\"><img src=\"https:\/\/static.bhphoto.com\/images\/images345x345\/1654062963000_1708577.jpg\" alt=\"ALEXA 35 Body & ARRI PL Mount Set (LBUS)\"><\/div><div class=\"col l8 m12 s12 alternative-link-data offset-l1\"><div class=\"row\"><div class=\"col s3 link-logo\"><span class=\"bh-logo\"><\/span><\/div><div class=\"col s2 link-flag no-padding\"><span class=\"link-flags 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