What is S-Log3 and Why Convert Consumer Formats to It?
Sony's S-Log3 is a logarithmic gamma curve designed to preserve the maximum dynamic range captured by cinema sensors (such as the Sony FX3, FX6, or Venice). S-Log3 allocates levels evenly across shadows and mid-tones, making it the industry standard for cinema grading. However, secondary cameras, stock graphics, and web-sourced assets are generated in sRGB or Rec.709, featuring high contrast and saturated tones. By executing an sRGB to S-Log3 converter transform, you decompress these consumer assets, reshaping their gamuts into flat logarithmic containers.