{"id":329303,"date":"2024-03-04T15:07:07","date_gmt":"2024-03-04T14:07:07","guid":{"rendered":"https:\/\/www.cined.com\/?p=329303"},"modified":"2024-03-04T18:04:55","modified_gmt":"2024-03-04T17:04:55","slug":"sony-alpha-9-iii-lab-test-dynamic-range-and-latitude","status":"publish","type":"post","link":"https:\/\/staging.cined.dev\/es\/sony-alpha-9-iii-lab-test-dynamic-range-and-latitude\/","title":{"rendered":"Prueba de Laboratorio Sony Alpha 9 III \u2013 Rango din\u00e1mico y latitud"},"content":{"rendered":"\n<p><strong>La nueva <a href=\"https:\/\/www.bhphotovideo.com\/c\/product\/1794764-REG\/sony_ilce_9m3_a9_iii_mirrorless_camera.html\/BI\/7953\/KBID\/8488\/SID\/gunther\" target=\"_blank\" rel=\"noreferrer noopener\">Sony a9 III<\/a> lleg\u00f3 a la sede de CineD y est\u00e1bamos ansiosos por someterla a nuestras pruebas de laboratorio ya que, despu\u00e9s de todo, es la primera c\u00e1mara Sony Alpha con un sensor de obturador global. Hasta ahora, los sensores de obturaci\u00f3n globales eran conocidos por tener menos rango din\u00e1mico. Bueno, los tiempos est\u00e1n cambiando&#8230;<\/strong><\/p><329303-inline-buylinks\/>\n\n\n\n<p>Los sensores de obturador globales existen desde hace tiempo, pero hasta ahora se han visto obstaculizados por el hecho de que el rango din\u00e1mico era significativamente menor que el que mostraban sus hom\u00f3logos CMOS. RED fue la primera empresa que pareci\u00f3 haber roto este paradigma con su c\u00e1mara con obturador global RED KOMODO 6K (consulta nuestra prueba de laboratorio <a href=\"https:\/\/www.cined.com\/es\/red-komodo-6k-lab-test-dynamic-range-and-latitude-test\/\" target=\"_blank\" rel=\"noreferrer noopener\">aqu\u00ed<\/a>), que funcion\u00f3 muy bien en nuestras pruebas de rango din\u00e1mico. <\/p>\n\n\n\n<p>Ahora, Sony ha introducido un sensor de obturador global full-frame 6K en su reciente a9 III. Puedes leer nuestro art\u00edculo <a href=\"https:\/\/www.cined.com\/sony-a9-iii-camera-and-fe-300mm-f-2-8-gm-oss-lens-announced\/\" target=\"_blank\" rel=\"noreferrer noopener\">aqu\u00ed<\/a> que cubre las especificaciones y las novedades en t\u00e9rminos de cuerpo y ergonom\u00eda. En esencia, proporciona v\u00eddeo 4K sobremuestreado desde 6K en modo full-frame o Super 35 para velocidades de cuadros de 24 a 120 por segundo sin ning\u00fan recorte.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-Lab-Test-900x506.jpg\" alt=\"The new Sony a9 III in our CineD lab\" class=\"wp-image-327587\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">La nueva Sony a9 III en nuestro laboratorio CineD. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Entonces, sin m\u00e1s pre\u00e1mbulos, pasemos directamente a los resultados. Una vez m\u00e1s, mi querido colega Florian Milz ayud\u00f3 a realizar esta prueba y tambi\u00e9n proporcion\u00f3 los an\u00e1lisis de IMATEST. \u00a1Gracias, Florian!<\/p>\n\n\n\n<p>Por razones obvias, no hay una secci\u00f3n de rolling shutter para esta c\u00e1mara con obturador global, por lo que el siguiente paso es la medici\u00f3n del rango din\u00e1mico utilizando nuestra tabla Xyla21 (consulta nuestro art\u00edculo <a href=\"https:\/\/www.cined.com\/es\/the-cinema5d-camera-lab-is-back-dynamic-range-tests\/\" target=\"_blank\" rel=\"noreferrer noopener\">aqu\u00ed<\/a> sobre c\u00f3mo probamos el rango din\u00e1mico).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-rango-dinamico-de-la-sony-a9-iii-a-iso2000\">Rango din\u00e1mico de la Sony a9 III a ISO2000<\/h2>\n\n\n\n<p>Lo primero que hay que notar al encender la Sony a9 III es que el ISO base o \u201cnativo\u201d de S-Log3 es de 2000 en lugar de 800 como en tantas otras c\u00e1maras Sony. Bien, aqu\u00ed est\u00e1 el resultado de la forma de onda utilizando nuestro gr\u00e1fico Xyla21 en S-Gamut3.Cine\/S-Log3 usando 4K XAVC S-I full-frame a ISO2000:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"703\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/Waveform-4K-25p-900x703.jpeg\" alt=\"Waveform plot of the Xyla21 chart in full frame 4K, ISO2000\" class=\"wp-image-327626\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-4K-25p-900x703.jpeg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-4K-25p-300x234.jpeg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-4K-25p-768x600.jpeg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-4K-25p-1536x1200.jpeg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-4K-25p-294x230.jpeg 294w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-4K-25p.jpeg 1948w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">Gr\u00e1fico de forma de onda Xyla21 en full-frame 4K, ISO2000. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Se pueden ver 12 paradas s\u00f3lidas por encima del piso de ruido, e incluso se ven las paradas 13 y 14. IMATEST calcula 11.4 paradas con una relaci\u00f3n se\u00f1al-ruido de 2 (SNR) y 12.7 paradas con SNR = 1. A primera vista, esto parece m\u00e1s de 1 punto menos que, por ejemplo, la Sony a7 IV que probamos <a href=\"https:\/\/www.cined.com\/sony-a7-iv-lab-test-rolling-shutter-dynamic-range-and-latitude\/\" target=\"_blank\" rel=\"noreferrer noopener\">aqu\u00ed<\/a>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"1091\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/IMATEST-4K-25p-900x1091.jpeg\" alt=\"MATEST result for full frame 4K SLOG3 at ISO2000\" class=\"wp-image-327623\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-4K-25p-900x1091.jpeg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-4K-25p-300x364.jpeg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-4K-25p-768x931.jpeg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-4K-25p-190x230.jpeg 190w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-4K-25p.jpeg 1120w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">Resultado IMATEST para 4K S-Log3 full-frame en ISO2000. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Pero algo interesante es visible en el gr\u00e1fico del medio sobre la l\u00ednea azul \u201c12.7\u201d: hay otras 3 paradas exhibidas dentro del piso de ruido que potencialmente podr\u00edan \u201cexcavarse\u201d usando la reducci\u00f3n de ruido en la postproducci\u00f3n. Todas las dem\u00e1s c\u00e1maras Sony Alpha que probamos hasta ahora ten\u00edan una gran cantidad de reducci\u00f3n de ruido interno (que no se puede desactivar) ya integrada en la imagen, lo que condujo a resultados IMATEST aparentemente mejores, pero tampoco mostr\u00f3 ning\u00fan potencial para revelar paradas adicionales del piso de ruido.<\/p>\n\n\n\n<p>La Sony a9 III parece comportarse diferente. Parece m\u00e1s ruidoso, pero el ruido est\u00e1 finamente disperso y por lo tanto, si el canal de im\u00e1genes (incluidos los c\u00f3decs) es capaz de codificar este fino grano de imagen, podremos eliminar las sombras aplicando reducci\u00f3n de ruido en la postproducci\u00f3n.<\/p>\n\n\n\n<p>Adem\u00e1s, el rango din\u00e1mico se mantiene igual a 60 cuadros por segundo y 120fps. Es algo bastante destacable.<\/p>\n\n\n\n<p>En el modo 4K Super 35 no hay sobremuestreo desde 6K, por lo que la imagen es un poco m\u00e1s ruidosa, lo que se refleja en la forma de onda y en los resultados de IMATEST a continuaci\u00f3n:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"703\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/Waveform-S35-4K-25p-900x703.jpeg\" alt=\"Waveform plot of the Xyla21 chart in S35 4K, ISO2000\" class=\"wp-image-327632\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-S35-4K-25p-900x703.jpeg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-S35-4K-25p-300x234.jpeg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-S35-4K-25p-768x600.jpeg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-S35-4K-25p-1536x1200.jpeg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-S35-4K-25p-294x230.jpeg 294w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-S35-4K-25p.jpeg 1948w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">Gr\u00e1fico de forma de onda Xyla21 en S35 4K, ISO2000. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"1091\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/IMATEST-S35-4K-25p-900x1091.jpeg\" alt=\"\" class=\"wp-image-327629\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-S35-4K-25p-900x1091.jpeg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-S35-4K-25p-300x364.jpeg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-S35-4K-25p-768x931.jpeg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-S35-4K-25p-190x230.jpeg 190w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-S35-4K-25p.jpeg 1120w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">Resultado IMATEST para S35 4K S-Log3 en ISO2000. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>El rango din\u00e1mico cae a 10.8 paradas con SNR = 2 y 12 paradas con SNR = 1.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Latitud de exposici\u00f3n de la Sony a9 III<\/h2>\n\n\n\n<p>Como se indic\u00f3 en art\u00edculos anteriores, la latitud es la capacidad de una c\u00e1mara para retener detalles y colores cuando se sobreexpone o subexpone y se lleva a una exposici\u00f3n base. Esta prueba es muy reveladora, ya que lleva el proceso completo de im\u00e1genes de cualquier c\u00e1mara a sus l\u00edmites absolutos, no s\u00f3lo en las luces sino principalmente en las sombras.<\/p>\n\n\n\n<p>La exposici\u00f3n base de nuestro estudio se elige (arbitrariamente) para que tenga un valor de luma (sin gradar) de alrededor del 60% en la frente de nuestro sujeto en el monitor de forma de onda; en este caso, mi colega Nino:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-900x506.jpg\" alt=\"Base exposure of the standard CineD studio scene with the Sony a9 III\" class=\"wp-image-327611\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">Exposici\u00f3n base de la escena de estudio CineD est\u00e1ndar con la Sony a9 III. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Nuevamente, filmamos en S-Gamut3.Cine\/S-Log3 usando 4K XAVC S-I full-frame a ISO2000. Las im\u00e1genes LOG se desarrollaron en DaVinci Resolve 18.6.4 usando una transformaci\u00f3n del espacio de color de entrada (CST) a gama amplia\/intermedia de DaVinci, luego se ajustaron a la exposici\u00f3n base y finalmente se llevaron a Rec709 mediante otro nodo de transformaci\u00f3n del espacio de color.<\/p>\n\n\n\n<p>A 4 paradas por encima de la exposici\u00f3n base, estamos a punto de comenzar a recortar el canal rojo en la frente de Nino, pero la imagen devuelta a la base se ve perfectamente bien:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-900x506.jpg\" alt=\"4 stops of overexposure, brought back to base\" class=\"wp-image-327590\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">4 paradas de sobreexposici\u00f3n, regresadas a cero. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Todo se vuelve interesante cuando comenzamos a subexponer la imagen debajo de nuestra exposici\u00f3n base en incrementos de 1 parada y la regresamos a la base en la postproducci\u00f3n. A 3 paradas por debajo, la imagen comienza a mostrar un grano finamente disperso, que en realidad se ve bastante bien para mis ojos.<\/p>\n\n\n\n<p>A 4 paradas por debajo, regresadas a la base, el ruido se vuelve muy notorio en la imagen:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-900x506.jpg\" alt=\"4 stops of underexposure, pushed back to base\" class=\"wp-image-327596\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">4 paradas de subexposici\u00f3n, regresadas a la base. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>La reducci\u00f3n de ruido a\u00fan puede proporcionar un resultado decente y muy \u00fatil:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-900x506.jpg\" alt=\"4 stops of underexposure, pushed back to base using noise reduction\" class=\"wp-image-327593\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">4 paradas de subexposici\u00f3n, regresadas a la base mediante la reducci\u00f3n de ruido. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>La imagen se ve muy bien, no hay l\u00edneas horizontales ni artefactos de bandas visibles. Ya estamos en 8 paradas de latitud de exposici\u00f3n, que es 1 parada mejor que la Sony a7S III o la Sony a7 IV. \u00a1Guau, esto es realmente bueno! Hasta ahora, s\u00f3lo la Sony A1 logr\u00f3 proporcionar 8 paradas de latitud de exposici\u00f3n.<\/p>\n\n\n\n<p>Ahora, veamos si podemos llevarla 1 parada m\u00e1s, hasta alcanzar las 9 paradas de latitud:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-900x506.jpg\" alt=\"5 stops of underexposure, pushed back to base\" class=\"wp-image-327602\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">5 paradas de subexposici\u00f3n, regresadas a la base. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>El ruido luma y croma est\u00e1 por todas partes, pero a\u00fan est\u00e1 finamente disperso, a diferencia de otras c\u00e1maras Alpha de Sony que normalmente comienzan a mostrar manchas m\u00e1s grandes de ruido croma que no se pueden eliminar f\u00e1cilmente mediante la reducci\u00f3n de ruido.<\/p>\n\n\n\n<p>La reducci\u00f3n de ruido logra limpiar la imagen bastante bien:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-900x506.jpg\" alt=\"5 stops of underexposure, pushed back to base using noise reduction\" class=\"wp-image-327599\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">5 paradas de subexposici\u00f3n, regresadas a la base mediante reducci\u00f3n de ruido. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Vaya, todav\u00eda es bastante utilizable y estamos a 9 paradas de latitud de exposici\u00f3n. Hasta ahora, las \u00fanicas c\u00e1maras que lograron hacer esto fueron la RED V-Raptor 8K VV (9 paradas de latitud), la ARRI 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> (10 paradas de latitud) y la Alexa 35 (12 paradas). Mi criterio es siempre concentrarme en el lado oscuro de la cara, y podr\u00e1s notar que esta \u00e1rea a\u00fan se limpia bien.<\/p>\n\n\n\n<p>Creo que hemos llegado al l\u00edmite, ya que hay manchas m\u00e1s grandes, d\u00e9biles pero visibles, de ruido crom\u00e1tico rosa. De todos modos, a\u00fan no distraen mucho la vista.<\/p>\n\n\n\n<p>Ahora intentemos ir una parada m\u00e1s de subexposici\u00f3n pasando a una latitud de exposici\u00f3n de 10 paradas:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-900x506.jpg\" alt=\"6 stops of underexposure, pushed back to base\" class=\"wp-image-327608\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">6 paradas de subexposici\u00f3n, regresadas a la base. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Hay un ruido atroz por todas partes. Veamos qu\u00e9 puede hacer la reducci\u00f3n de ruido:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-900x506.jpg\" alt=\"6 stops of underexposure, pushed back to base using noise reduction\" class=\"wp-image-327605\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">6 paradas de subexposici\u00f3n, regresadas a la base mediante reducci\u00f3n de ruido. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"787\" height=\"389\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-DVR-NR-settings-6-under.jpg\" alt=\"DaVinci Resolve noise reduction settings for 6 stops under, pushed back\" class=\"wp-image-327620\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-DVR-NR-settings-6-under.jpg 787w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-DVR-NR-settings-6-under-300x148.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-DVR-NR-settings-6-under-768x380.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-DVR-NR-settings-6-under-465x230.jpg 465w\" sizes=\"auto, (max-width: 787px) 100vw, 787px\" \/><figcaption class=\"wp-element-caption\">Configuraci\u00f3n de la reducci\u00f3n de ruido de DaVinci Resolve para 6 paradas, regresadas a la base. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Fin del juego. El lado oscuro de la cara de Nino ya no se puede recuperar, y la fuerte reducci\u00f3n de ruido necesaria para limpiarlo genera im\u00e1genes fantasma que no ser\u00edan aceptables en una imagen en movimiento. \u00a1Se ve sorprendentemente bien, sin bandas ni artefactos de l\u00edneas horizontales\/verticales!<\/p>\n\n\n\n<p>En resumen, esto me lleva al excelente resultado de 9 paradas de latitud de exposici\u00f3n con cierto margen de maniobra hacia una 10. Este es el mejor resultado que encontramos hasta ahora para una c\u00e1mara full-frame de consumidor (como se mencion\u00f3 anteriormente, la ARRI Alexa  Mini LF exhibi\u00f3 10 paradas de latitud de exposici\u00f3n, y la Alexa 35 12 paradas).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Resumen<\/h2>\n\n\n\n<p>La Sony Alpha 9 III ha mostrado un desempe\u00f1o fant\u00e1stico en nuestra prueba de laboratorio. El rolling shutter, por la propia naturaleza del dise\u00f1o, es inexistente (efectivamente 0 ms): lo mejor que tenemos y veremos para sensores full-frame. No es posible mejorarlo a\u00fan m\u00e1s.<\/p>\n\n\n\n<p>El rango din\u00e1mico utilizando nuestro gr\u00e1fico Xyla21 y el an\u00e1lisis IMATEST es promedio en comparaci\u00f3n con otras c\u00e1maras full-frame de consumidor. Pero como suele ser el caso, los resultados de IMATEST son s\u00f3lo una pieza del rompecabezas que analiza el rango din\u00e1mico de una c\u00e1mara. B\u00e1sicamente, da una idea de cu\u00e1n ruidosas son las im\u00e1genes en las distintas paradas (parches) de Xyla, y aqu\u00ed se puede ver claramente que el sensor de obturador global es definitivamente m\u00e1s ruidoso que sus hom\u00f3logos CMOS full-frame vistos en otras c\u00e1maras de consumidor.<\/p>\n\n\n\n<p>Sin embargo, Sony aplic\u00f3 algo de magia al proceso de im\u00e1genes, incluyendo los c\u00f3decs, ya que el fino ruido del sensor se conserva en la imagen final y las sombras se pueden corregir masivamente en la postproducci\u00f3n sin a\u00f1adir manchas de ruido m\u00e1s grandes y desagradables; Esto da como resultado una magn\u00edfica latitud de exposici\u00f3n de 9 paradas con algo de espacio hacia una 10, lo que la convierte en la mejor c\u00e1mara Sony Alpha hasta la fecha en modo de video en t\u00e9rminos de rango din\u00e1mico. Tambi\u00e9n es la mejor c\u00e1mara full-frame para consumidor en ese sentido.<\/p>\n\n\n\n<p>\u00a1Qu\u00e9 sorpresa: todo esto desde un sensor de obturador global! Bueno, como se mencion\u00f3 al principio del art\u00edculo, los tiempos est\u00e1n cambiando&#8230;<\/p>\n\n\n\n<p><strong>\u00bfYa has trabajado con la Sony a9 III? \u00bfC\u00f3mo han sido tus experiencias? Cu\u00e9ntanos en los comentarios qu\u00e9 piensas al respecto.<\/strong><\/p>\n<329303-main-buylinks\/>","protected":false,"clean_render":"<p><strong>La nueva <a href=\"https:\/\/www.bhphotovideo.com\/c\/product\/1794764-REG\/sony_ilce_9m3_a9_iii_mirrorless_camera.html\/BI\/7953\/KBID\/8488\/SID\/gunther\" target=\"_blank\" rel=\"noreferrer noopener\">Sony a9 III<\/a> lleg\u00f3 a la sede de CineD y est\u00e1bamos ansiosos por someterla a nuestras pruebas de laboratorio ya que, despu\u00e9s de todo, es la primera c\u00e1mara Sony Alpha con un sensor de obturador global. Hasta ahora, los sensores de obturaci\u00f3n globales eran conocidos por tener menos rango din\u00e1mico. Bueno, los tiempos est\u00e1n cambiando&#8230;<\/strong><\/p><329303-inline-buylinks\/>\n\n\n\n<p>Los sensores de obturador globales existen desde hace tiempo, pero hasta ahora se han visto obstaculizados por el hecho de que el rango din\u00e1mico era significativamente menor que el que mostraban sus hom\u00f3logos CMOS. RED fue la primera empresa que pareci\u00f3 haber roto este paradigma con su c\u00e1mara con obturador global RED KOMODO 6K (consulta nuestra prueba de laboratorio <a href=\"https:\/\/www.cined.com\/es\/red-komodo-6k-lab-test-dynamic-range-and-latitude-test\/\" target=\"_blank\" rel=\"noreferrer noopener\">aqu\u00ed<\/a>), que funcion\u00f3 muy bien en nuestras pruebas de rango din\u00e1mico. <\/p>\n\n\n\n<p>Ahora, Sony ha introducido un sensor de obturador global full-frame 6K en su reciente a9 III. Puedes leer nuestro art\u00edculo <a href=\"https:\/\/www.cined.com\/sony-a9-iii-camera-and-fe-300mm-f-2-8-gm-oss-lens-announced\/\" target=\"_blank\" rel=\"noreferrer noopener\">aqu\u00ed<\/a> que cubre las especificaciones y las novedades en t\u00e9rminos de cuerpo y ergonom\u00eda. En esencia, proporciona v\u00eddeo 4K sobremuestreado desde 6K en modo full-frame o Super 35 para velocidades de cuadros de 24 a 120 por segundo sin ning\u00fan recorte.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-Lab-Test-900x506.jpg\" alt=\"The new Sony a9 III in our CineD lab\" class=\"wp-image-327587\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-Lab-Test.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">La nueva Sony a9 III en nuestro laboratorio CineD. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Entonces, sin m\u00e1s pre\u00e1mbulos, pasemos directamente a los resultados. Una vez m\u00e1s, mi querido colega Florian Milz ayud\u00f3 a realizar esta prueba y tambi\u00e9n proporcion\u00f3 los an\u00e1lisis de IMATEST. \u00a1Gracias, Florian!<\/p>\n\n\n\n<p>Por razones obvias, no hay una secci\u00f3n de rolling shutter para esta c\u00e1mara con obturador global, por lo que el siguiente paso es la medici\u00f3n del rango din\u00e1mico utilizando nuestra tabla Xyla21 (consulta nuestro art\u00edculo <a href=\"https:\/\/www.cined.com\/es\/the-cinema5d-camera-lab-is-back-dynamic-range-tests\/\" target=\"_blank\" rel=\"noreferrer noopener\">aqu\u00ed<\/a> sobre c\u00f3mo probamos el rango din\u00e1mico).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-rango-dinamico-de-la-sony-a9-iii-a-iso2000\">Rango din\u00e1mico de la Sony a9 III a ISO2000<\/h2>\n\n\n\n<p>Lo primero que hay que notar al encender la Sony a9 III es que el ISO base o \u201cnativo\u201d de S-Log3 es de 2000 en lugar de 800 como en tantas otras c\u00e1maras Sony. Bien, aqu\u00ed est\u00e1 el resultado de la forma de onda utilizando nuestro gr\u00e1fico Xyla21 en S-Gamut3.Cine\/S-Log3 usando 4K XAVC S-I full-frame a ISO2000:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"703\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/Waveform-4K-25p-900x703.jpeg\" alt=\"Waveform plot of the Xyla21 chart in full frame 4K, ISO2000\" class=\"wp-image-327626\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-4K-25p-900x703.jpeg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-4K-25p-300x234.jpeg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-4K-25p-768x600.jpeg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-4K-25p-1536x1200.jpeg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-4K-25p-294x230.jpeg 294w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-4K-25p.jpeg 1948w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">Gr\u00e1fico de forma de onda Xyla21 en full-frame 4K, ISO2000. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Se pueden ver 12 paradas s\u00f3lidas por encima del piso de ruido, e incluso se ven las paradas 13 y 14. IMATEST calcula 11.4 paradas con una relaci\u00f3n se\u00f1al-ruido de 2 (SNR) y 12.7 paradas con SNR = 1. A primera vista, esto parece m\u00e1s de 1 punto menos que, por ejemplo, la Sony a7 IV que probamos <a href=\"https:\/\/www.cined.com\/sony-a7-iv-lab-test-rolling-shutter-dynamic-range-and-latitude\/\" target=\"_blank\" rel=\"noreferrer noopener\">aqu\u00ed<\/a>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"1091\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/IMATEST-4K-25p-900x1091.jpeg\" alt=\"MATEST result for full frame 4K SLOG3 at ISO2000\" class=\"wp-image-327623\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-4K-25p-900x1091.jpeg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-4K-25p-300x364.jpeg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-4K-25p-768x931.jpeg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-4K-25p-190x230.jpeg 190w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-4K-25p.jpeg 1120w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">Resultado IMATEST para 4K S-Log3 full-frame en ISO2000. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Pero algo interesante es visible en el gr\u00e1fico del medio sobre la l\u00ednea azul \u201c12.7\u201d: hay otras 3 paradas exhibidas dentro del piso de ruido que potencialmente podr\u00edan \u201cexcavarse\u201d usando la reducci\u00f3n de ruido en la postproducci\u00f3n. Todas las dem\u00e1s c\u00e1maras Sony Alpha que probamos hasta ahora ten\u00edan una gran cantidad de reducci\u00f3n de ruido interno (que no se puede desactivar) ya integrada en la imagen, lo que condujo a resultados IMATEST aparentemente mejores, pero tampoco mostr\u00f3 ning\u00fan potencial para revelar paradas adicionales del piso de ruido.<\/p>\n\n\n\n<p>La Sony a9 III parece comportarse diferente. Parece m\u00e1s ruidoso, pero el ruido est\u00e1 finamente disperso y por lo tanto, si el canal de im\u00e1genes (incluidos los c\u00f3decs) es capaz de codificar este fino grano de imagen, podremos eliminar las sombras aplicando reducci\u00f3n de ruido en la postproducci\u00f3n.<\/p>\n\n\n\n<p>Adem\u00e1s, el rango din\u00e1mico se mantiene igual a 60 cuadros por segundo y 120fps. Es algo bastante destacable.<\/p>\n\n\n\n<p>En el modo 4K Super 35 no hay sobremuestreo desde 6K, por lo que la imagen es un poco m\u00e1s ruidosa, lo que se refleja en la forma de onda y en los resultados de IMATEST a continuaci\u00f3n:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"703\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/Waveform-S35-4K-25p-900x703.jpeg\" alt=\"Waveform plot of the Xyla21 chart in S35 4K, ISO2000\" class=\"wp-image-327632\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-S35-4K-25p-900x703.jpeg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-S35-4K-25p-300x234.jpeg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-S35-4K-25p-768x600.jpeg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-S35-4K-25p-1536x1200.jpeg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-S35-4K-25p-294x230.jpeg 294w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/Waveform-S35-4K-25p.jpeg 1948w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">Gr\u00e1fico de forma de onda Xyla21 en S35 4K, ISO2000. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"1091\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/IMATEST-S35-4K-25p-900x1091.jpeg\" alt=\"\" class=\"wp-image-327629\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-S35-4K-25p-900x1091.jpeg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-S35-4K-25p-300x364.jpeg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-S35-4K-25p-768x931.jpeg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-S35-4K-25p-190x230.jpeg 190w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/IMATEST-S35-4K-25p.jpeg 1120w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">Resultado IMATEST para S35 4K S-Log3 en ISO2000. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>El rango din\u00e1mico cae a 10.8 paradas con SNR = 2 y 12 paradas con SNR = 1.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Latitud de exposici\u00f3n de la Sony a9 III<\/h2>\n\n\n\n<p>Como se indic\u00f3 en art\u00edculos anteriores, la latitud es la capacidad de una c\u00e1mara para retener detalles y colores cuando se sobreexpone o subexpone y se lleva a una exposici\u00f3n base. Esta prueba es muy reveladora, ya que lleva el proceso completo de im\u00e1genes de cualquier c\u00e1mara a sus l\u00edmites absolutos, no s\u00f3lo en las luces sino principalmente en las sombras.<\/p>\n\n\n\n<p>La exposici\u00f3n base de nuestro estudio se elige (arbitrariamente) para que tenga un valor de luma (sin gradar) de alrededor del 60% en la frente de nuestro sujeto en el monitor de forma de onda; en este caso, mi colega Nino:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-900x506.jpg\" alt=\"Base exposure of the standard CineD studio scene with the Sony a9 III\" class=\"wp-image-327611\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-base_1.22.1.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">Exposici\u00f3n base de la escena de estudio CineD est\u00e1ndar con la Sony a9 III. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Nuevamente, filmamos en S-Gamut3.Cine\/S-Log3 usando 4K XAVC S-I full-frame a ISO2000. Las im\u00e1genes LOG se desarrollaron en DaVinci Resolve 18.6.4 usando una transformaci\u00f3n del espacio de color de entrada (CST) a gama amplia\/intermedia de DaVinci, luego se ajustaron a la exposici\u00f3n base y finalmente se llevaron a Rec709 mediante otro nodo de transformaci\u00f3n del espacio de color.<\/p>\n\n\n\n<p>A 4 paradas por encima de la exposici\u00f3n base, estamos a punto de comenzar a recortar el canal rojo en la frente de Nino, pero la imagen devuelta a la base se ve perfectamente bien:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-900x506.jpg\" alt=\"4 stops of overexposure, brought back to base\" class=\"wp-image-327590\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-over-pb_1.18.1.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">4 paradas de sobreexposici\u00f3n, regresadas a cero. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Todo se vuelve interesante cuando comenzamos a subexponer la imagen debajo de nuestra exposici\u00f3n base en incrementos de 1 parada y la regresamos a la base en la postproducci\u00f3n. A 3 paradas por debajo, la imagen comienza a mostrar un grano finamente disperso, que en realidad se ve bastante bien para mis ojos.<\/p>\n\n\n\n<p>A 4 paradas por debajo, regresadas a la base, el ruido se vuelve muy notorio en la imagen:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-900x506.jpg\" alt=\"4 stops of underexposure, pushed back to base\" class=\"wp-image-327596\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb_1.26.1.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">4 paradas de subexposici\u00f3n, regresadas a la base. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>La reducci\u00f3n de ruido a\u00fan puede proporcionar un resultado decente y muy \u00fatil:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-900x506.jpg\" alt=\"4 stops of underexposure, pushed back to base using noise reduction\" class=\"wp-image-327593\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-4-under-pb-NR_1.29.1.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">4 paradas de subexposici\u00f3n, regresadas a la base mediante la reducci\u00f3n de ruido. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>La imagen se ve muy bien, no hay l\u00edneas horizontales ni artefactos de bandas visibles. Ya estamos en 8 paradas de latitud de exposici\u00f3n, que es 1 parada mejor que la Sony a7S III o la Sony a7 IV. \u00a1Guau, esto es realmente bueno! Hasta ahora, s\u00f3lo la Sony A1 logr\u00f3 proporcionar 8 paradas de latitud de exposici\u00f3n.<\/p>\n\n\n\n<p>Ahora, veamos si podemos llevarla 1 parada m\u00e1s, hasta alcanzar las 9 paradas de latitud:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-900x506.jpg\" alt=\"5 stops of underexposure, pushed back to base\" class=\"wp-image-327602\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb_1.27.1.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">5 paradas de subexposici\u00f3n, regresadas a la base. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>El ruido luma y croma est\u00e1 por todas partes, pero a\u00fan est\u00e1 finamente disperso, a diferencia de otras c\u00e1maras Alpha de Sony que normalmente comienzan a mostrar manchas m\u00e1s grandes de ruido croma que no se pueden eliminar f\u00e1cilmente mediante la reducci\u00f3n de ruido.<\/p>\n\n\n\n<p>La reducci\u00f3n de ruido logra limpiar la imagen bastante bien:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-900x506.jpg\" alt=\"5 stops of underexposure, pushed back to base using noise reduction\" class=\"wp-image-327599\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-5-under-pb-NR_1.30.1.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">5 paradas de subexposici\u00f3n, regresadas a la base mediante reducci\u00f3n de ruido. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Vaya, todav\u00eda es bastante utilizable y estamos a 9 paradas de latitud de exposici\u00f3n. Hasta ahora, las \u00fanicas c\u00e1maras que lograron hacer esto fueron la RED V-Raptor 8K VV (9 paradas de latitud), la ARRI 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> (10 paradas de latitud) y la Alexa 35 (12 paradas). Mi criterio es siempre concentrarme en el lado oscuro de la cara, y podr\u00e1s notar que esta \u00e1rea a\u00fan se limpia bien.<\/p>\n\n\n\n<p>Creo que hemos llegado al l\u00edmite, ya que hay manchas m\u00e1s grandes, d\u00e9biles pero visibles, de ruido crom\u00e1tico rosa. De todos modos, a\u00fan no distraen mucho la vista.<\/p>\n\n\n\n<p>Ahora intentemos ir una parada m\u00e1s de subexposici\u00f3n pasando a una latitud de exposici\u00f3n de 10 paradas:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-900x506.jpg\" alt=\"6 stops of underexposure, pushed back to base\" class=\"wp-image-327608\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb_1.28.1.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">6 paradas de subexposici\u00f3n, regresadas a la base. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Hay un ruido atroz por todas partes. Veamos qu\u00e9 puede hacer la reducci\u00f3n de ruido:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-900x506.jpg\" alt=\"6 stops of underexposure, pushed back to base using noise reduction\" class=\"wp-image-327605\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-900x506.jpg 900w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-300x169.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-768x432.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-1536x864.jpg 1536w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-340x190.jpg 340w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-460x259.jpg 460w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-409x230.jpg 409w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1-1600x900.jpg 1600w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-6-under-pb-NR_1.31.1.jpg 1920w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">6 paradas de subexposici\u00f3n, regresadas a la base mediante reducci\u00f3n de ruido. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"787\" height=\"389\" src=\"https:\/\/www.cined.com\/content\/uploads\/2024\/02\/A9-III-DVR-NR-settings-6-under.jpg\" alt=\"DaVinci Resolve noise reduction settings for 6 stops under, pushed back\" class=\"wp-image-327620\" srcset=\"https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-DVR-NR-settings-6-under.jpg 787w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-DVR-NR-settings-6-under-300x148.jpg 300w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-DVR-NR-settings-6-under-768x380.jpg 768w, https:\/\/staging.cined.dev\/content\/uploads\/2024\/02\/A9-III-DVR-NR-settings-6-under-465x230.jpg 465w\" sizes=\"auto, (max-width: 787px) 100vw, 787px\" \/><figcaption class=\"wp-element-caption\">Configuraci\u00f3n de la reducci\u00f3n de ruido de DaVinci Resolve para 6 paradas, regresadas a la base. Cr\u00e9dito de la imagen: CineD<\/figcaption><\/figure><\/div>\n\n\n<p>Fin del juego. El lado oscuro de la cara de Nino ya no se puede recuperar, y la fuerte reducci\u00f3n de ruido necesaria para limpiarlo genera im\u00e1genes fantasma que no ser\u00edan aceptables en una imagen en movimiento. \u00a1Se ve sorprendentemente bien, sin bandas ni artefactos de l\u00edneas horizontales\/verticales!<\/p>\n\n\n\n<p>En resumen, esto me lleva al excelente resultado de 9 paradas de latitud de exposici\u00f3n con cierto margen de maniobra hacia una 10. Este es el mejor resultado que encontramos hasta ahora para una c\u00e1mara full-frame de consumidor (como se mencion\u00f3 anteriormente, la ARRI Alexa  Mini LF exhibi\u00f3 10 paradas de latitud de exposici\u00f3n, y la Alexa 35 12 paradas).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Resumen<\/h2>\n\n\n\n<p>La Sony Alpha 9 III ha mostrado un desempe\u00f1o fant\u00e1stico en nuestra prueba de laboratorio. El rolling shutter, por la propia naturaleza del dise\u00f1o, es inexistente (efectivamente 0 ms): lo mejor que tenemos y veremos para sensores full-frame. No es posible mejorarlo a\u00fan m\u00e1s.<\/p>\n\n\n\n<p>El rango din\u00e1mico utilizando nuestro gr\u00e1fico Xyla21 y el an\u00e1lisis IMATEST es promedio en comparaci\u00f3n con otras c\u00e1maras full-frame de consumidor. Pero como suele ser el caso, los resultados de IMATEST son s\u00f3lo una pieza del rompecabezas que analiza el rango din\u00e1mico de una c\u00e1mara. B\u00e1sicamente, da una idea de cu\u00e1n ruidosas son las im\u00e1genes en las distintas paradas (parches) de Xyla, y aqu\u00ed se puede ver claramente que el sensor de obturador global es definitivamente m\u00e1s ruidoso que sus hom\u00f3logos CMOS full-frame vistos en otras c\u00e1maras de consumidor.<\/p>\n\n\n\n<p>Sin embargo, Sony aplic\u00f3 algo de magia al proceso de im\u00e1genes, incluyendo los c\u00f3decs, ya que el fino ruido del sensor se conserva en la imagen final y las sombras se pueden corregir masivamente en la postproducci\u00f3n sin a\u00f1adir manchas de ruido m\u00e1s grandes y desagradables; Esto da como resultado una magn\u00edfica latitud de exposici\u00f3n de 9 paradas con algo de espacio hacia una 10, lo que la convierte en la mejor c\u00e1mara Sony Alpha hasta la fecha en modo de video en t\u00e9rminos de rango din\u00e1mico. Tambi\u00e9n es la mejor c\u00e1mara full-frame para consumidor en ese sentido.<\/p>\n\n\n\n<p>\u00a1Qu\u00e9 sorpresa: todo esto desde un sensor de obturador global! Bueno, como se mencion\u00f3 al principio del art\u00edculo, los tiempos est\u00e1n cambiando&#8230;<\/p>\n\n\n\n<p><strong>\u00bfYa has trabajado con la Sony a9 III? \u00bfC\u00f3mo han sido tus experiencias? Cu\u00e9ntanos en los comentarios qu\u00e9 piensas al respecto.<\/strong><\/p>\n<329303-main-buylinks\/>"},"excerpt":{"rendered":"<p>La nueva Sony a9 III lleg\u00f3 a la sede de CineD y est\u00e1bamos ansiosos por someterla a nuestras pruebas de laboratorio ya que, despu\u00e9s de todo, es la primera c\u00e1mara Sony Alpha con un sensor de obturador global. Hasta ahora, los sensores de obturaci\u00f3n globales eran conocidos por tener menos rango din\u00e1mico. Bueno, los tiempos est\u00e1n cambiando&#8230; Los sensores de obturador globales existen desde hace tiempo, pero hasta ahora se han visto obstaculizados por el hecho de que el rango din\u00e1mico era significativamente menor que el que mostraban sus hom\u00f3logos CMOS. RED fue la primera empresa que pareci\u00f3 haber roto este paradigma con su c\u00e1mara con obturador global RED KOMODO [&hellip;]<\/p>\n","protected":false},"author":8845,"featured_media":327616,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","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"}],"tags":[27551,79330,27552,79331,34229,79332,37196,79333,39707,51683,24280,59750,66514],"tag_label":[53001],"brand":[51341],"class_list":["post-329303","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pruebas-de-laboratorio","tag-dynamic-range-es","tag-sony-global-shutter-es","tag-lab-test-es","tag-sony-alpha-9-iii-es","tag-prueba-de-laboratorio","tag-sony-a9-iii-lab-test-es","tag-latitud","tag-sony-a9-iii-es","tag-latitude-es","tag-global-shutter-2-es","tag-sony-es","tag-prueba-de-laboratorio-cined","tag-rango-dinamico-2","tag_label-lab-test-es","brand-sony-es"],"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 Sony Alpha 9 III \u2013 Rango din\u00e1mico y latitud | CineD<\/title>\n<meta name=\"description\" content=\"CineD standard lab test of dynamic range and exposure latitude for the new global shutter 6K Sony a9 III camera.\" \/>\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\/sony-alpha-9-iii-lab-test-dynamic-range-and-latitude\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Prueba de Laboratorio Sony Alpha 9 III \u2013 Rango din\u00e1mico y latitud | CineD\" \/>\n<meta property=\"og:description\" content=\"CineD standard lab test of dynamic range and exposure latitude for the new global shutter 6K Sony a9 III camera.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/staging.cined.dev\/es\/sony-alpha-9-iii-lab-test-dynamic-range-and-latitude\/\" \/>\n<meta property=\"og:site_name\" content=\"CineD\" \/>\n<meta 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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>a9 III Mirrorless Camera<\/header><\/div><\/div><div class=\"row\"><div class=\"col l3 m12 s12 alternative-links-thumb\"><img src=\"https:\/\/static.bhphoto.com\/images\/images345x345\/1699368050000_1794764.jpg\" alt=\"a9 III Mirrorless Camera\"><\/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 link-flag-usa\"><\/span><\/div><div class=\"col s7 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