Originally posted by UncleVanya LOL - Yes I know I'm asking for the moon!
I like my DA 20-40 ltd in that respect but not nearly that wide. I already pointed out that the 17-70 f/4 is lovely but not 16 nor 2.8. I like my DA 15 - but not a zoom and not 2.8 and so the list goes on. It is a lens that can be improved that's all I'm saying.
I exchanged my DA20-40 for FA31, because it had awful AF accuracy and it was unreal to tweak it. The service said that it was OK, but it was the worst lens I ever had in terms of AF. There was huge dependence on aperture and focal length.
But it was very sharp. The sharpness like a prime. Anyway, I decided not to play lottery and asked Pentax dealer to exchange lens for FA31.