I’m seeing an even stronger color shift with .version9DNG when the CIContext working color space is set to CGColorSpace.extendedLinearITUR_2020: the rendered image has a pronounced tint in some cases. This seems consistent with your finding that the issue depends on the working-space primaries, even when the transfer function is linear. The different CIRAWFilter initializers also seem to behave quite differently. With the same .version9DNG decoder and extended linear Rec.2020 working space, I didn’t observe this tint when using CVPixelBuffer and properties, but I do when decoding serialized DNG data. I’ve also seen differences in how they apply lens-correction metadata. It feels like CIRAWFilter still needs quite a bit of love, particularly around consistency between input paths and clearer documentation of their differences (if they are intended)

Hi, seeing the same behavior. Even worse when in LockedCameraCapture, where CIRAWFilter takes > 5s on the first call.