Quoted By:
ho kay,
You only really do not care about these things unless you need consistent color or accurate to life color. Examples would be art work documentation, product photography, or pooled work from different cameras. Like you could get consistent representation of color between camera brands by profiling them. For example if you and a team shot an event and for some reason you had a sony, nikon, canon, and fuji and (big and) you needed it to look like it was shot with the same camera. Depending the camera and lens the difference the profiler will make will vary. Canon generally has accurate reproduction. When people talk about canon colors this is in part to what they are referring.
Attached is an example of how slight the shift is. On the left is the color checker before profiling and the right after. The camera profiled is a Canon 5Ds (to be fair this camera is well known among people who care about this kind of stuff as being really really good with color). If I felt like digging out my father's fuji 100x you could see a stronger example of color correction because that thing has terrible color accuracy.
