Originally posted by calsan What do you think is missing? What focal length?
APS format:
DA15, DA21, DA35 macro, DA40, DA70. DFA100 macro (ok it's sort of a limited given the build quality.)
135 format:
FA31, FA43, FA77, DFA100 macro again.
Sad, if no new primes. I think there is a place for a fast APS-C 24-28mm lens, preferably an affordable one. I have been searching and trying some used 21-28mm lenses. For general all-round use, traditional 35...40mm lens (135 film equivalent) is often the best.
There's the 35mm macro, which is only f/2.8 and is slightly over "50mm" fov (I own it, great lens). Then there's the 21mm limited, which is only f/3.2 and slightly too wide, maybe. Sigma has 20, 24 and 28mm f/1.8 lenses, which all have crappy corner sharpness. Same story with the 30mm f/1.4.
Now I have MF lenses, Cosina 24mm f/2.8 (otherwise very good, but no AF and slowish 2.8) and a rare Pentax SMC-M 28mm f/2.0. The latter is okay otherwise, but again lacks AF.
I have been trying to find a Pentax AF 24mm f/2 for a reasonable price, but no luck. And from the sample images I've seen, its corner sharpness isn't very good
Time for a new 24mm f2 lens!