There's a BH review on this lens which says:


Love the lens. Best I own but it has big time purple fringing with my 5dmk ii. Too bad. Wait for mark ii.


Was thinking of getting this lens for use with my 5DMkII. This gives me to worry. Has anyone else seen this problem? Or does he possibly have a lens with loose/shifted component that's causing chromatic aberration? Is a new model coming, as he seems to imply?