I'm needing to match some 3d stuff to some 4k video, so a little chromatic aberration wouldn't be out of place. However, due to the way I've learned to do it (scale one of the colour channels), I just experiment until something looks like it fits, instead of using something accurate.
However, I'm wondering if the abberation is always constant so I can do it more accurately. Like for example, would red always give the inside lining, with cyan (absence of red) being the outside lining, then green gives a smaller (half the size) inside lining and so on, or does it entirely depend on the lens being used?
I would have thought it should be constant with the way light bends, but from looking at google images, it seems some images don't seen to follow it.