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Also the longer the focal length of the lens the less CA seems to be an issue.
So faster and shorter focal length = more likely to show CA and more pressure on the lens designers to handle it.
I don't see very little CA on my Nikon 14-24mm at F2.8, I see very little with a cheap Pentax 67 165mm F2.8 wide open. So it can be done.
Generally speaking, a lens with ED elements is likely to have less CA.
CA is one thing usually tested for in lens reviews.
One of the best lens review sites I have seen is Photozone.de
Greg.
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