Originally Posted by Warren Shultz
It seems to show itself most with backlit and especially over-exposed areas. For example, an interior shot that shows a window edge that is out of focus in the background will easily show it.
Ditto, it's the overexposed areas, highlights, and slightly out of focus areas that tend to show blue edges. I see it a lot in my live 4-camera broadcast setup when one of the less experienced people is shading cameras, he pushes them too hot and CA shows up. Never happens when I'm shading though.