DCI 4K, also known as 4K cinema, is a digital cinema standard that defines a resolution of 4096 x 2160 pixels. It is the standard resolution for digital cinema projection and is also used for high-end home theater systems. The Sony A7S III is a full-frame mirrorless camera that is capable of recording DCI 4K video at up to 60 frames per second. To get DCI 4K from the A7S III, you will need to use the camera’s S-Log3 gamma profile and record to an external recorder via the HDMI output.
DCI 4K offers several advantages over other video formats. First, it has a higher resolution than 1080p, which results in sharper images with more detail. Second, DCI 4K has a wider color gamut than 1080p, which results in more accurate and vibrant colors. Third, DCI 4K has a higher frame rate than 1080p, which results in smoother motion. These advantages make DCI 4K the ideal format for high-quality video production.