Ran RF lens color tests in Lightroom using a R6 with a custom dual illuminate color profile made for the camera. Tests included shots in bright sunlight and shadows. For each shot I took a separate neutral grey shot to have the same white balance across all shots.
The test included the EF 35mm L II (for reference), RF 70-200 f/2.8, RF 100-500mm, RF 28-70mm f/2.0 and RF 50mm f/1.8. As I expected the results showed excellent color accuracy and consistency across all lenses - including the EF 35mm L II (which has some of Canon's newest lens coatings).
My conclusion is that swapping R-lenses will not lead to color inconsistencies and there is no need to repeat neutral grey shots unless your light changes - if using a proper color profile to process your files.
I will test more RF primes later. But expect the same results.
The test included the EF 35mm L II (for reference), RF 70-200 f/2.8, RF 100-500mm, RF 28-70mm f/2.0 and RF 50mm f/1.8. As I expected the results showed excellent color accuracy and consistency across all lenses - including the EF 35mm L II (which has some of Canon's newest lens coatings).
My conclusion is that swapping R-lenses will not lead to color inconsistencies and there is no need to repeat neutral grey shots unless your light changes - if using a proper color profile to process your files.
I will test more RF primes later. But expect the same results.