



Digital Camera Green Tints and Canon Picture Style Hacks
Observation
It has come to my attention that many classic digital cameras exhibit green tints across the entire tonal range in their SOOC JPEGs. Models that I've tested are: 5D Classic, Olympus E-400, Konica-Minolta 5D, and a newer Leica M10-R. This got me thinking if it would be possible to create Canon .pf3 Picture Styles that could bring these characteristics to newer EOS models.
Major Breakthrough Picture Style editor doesn't allow the user to edit RGB separately, but with a lot of fidgeting with the pf3 file format, I discovered that it is possible. I create custom software that accurately transforms a 1D LUT with these green tints into a Canon Picture Style. On top of that, I developed a color matching tool that measures color reproduction of Picture Style Editor against reference values, allowing me to accurately match color with color charts.
Further development The result: The first EOS Standard 5D Classic picture style with tints and a DeltaE below 1. I will be bringing all other 5D Classic Picture Styles as well as SOOC color from the cameras mentioned above to every Canon camera that supports .pf3 Picture Styles. Picture Styles may be limited, but there is some more life in them yet.
Images Shown
- 1st image shows how Adobe Camera Raw doesn't translate these green hues because DCP profiles don't carry offset RGB curves. We need XMP profiles for that.
- 2nd image shows the curves needed for Adobe Neutral from an EOS M6MKII shot in Neutral to match Standard shot with a 5D Classic.
- 3rd image shows my custom color matching software.
- 4th image shows my M6 MKII emulated to the 5D Classic.