Erik L
Well-known
FWIW, I found a 40-43mm step up ring at B&H, to which I attach a generic 43mm hood, for use on my Canon 50/1.5. Works just fine. I've got the authentic clamp-on hood for the 50/1.8 which is nice, but can get bumped off. The screw-in hoods work better, in my experience.
not only that but 43 filters are easier to find than the SERIES filters and the 40-series adapter (comes with the canon shade usually).