Franks's reviews

Pentax 55mm f/1.4 SDM SMC DA*

I have this lens for a week now, it back focuses severely. I took a lot of shots in all kinds of different conditions, but it’s clear that the lens is badly calibrated. All my other AF lenses work great on my K10D. When I manually correct the AF I get good sharp pictures. I love the IQ and contrast but I bought this lens mainly for the AF (because that’s what I am missing from my Planar 50/1.4), but the AF of the 55/1.4 is clearly not working like it’s supposed to do. I don’t know why Pentax is using the SDM in the Star models, I would prefer the screwdriver, because then I rely on a working AF over let’s say 15 years.