Originally posted by bossa On another note; I re-purchased a DA*55 and have found that it back-focuses badly and needs a +10 or more adjustment. I really am sick of these issues with Pentax and I'll probably send off the camera and lens for service tomorrow. The last DA*55 I owned spent 3 months in Japan getting 'new gears'.. a large slab out of a 1 year warranty for sure.
I tried 2 DA*55mm lenses before getting the Sigma 50mm F/1.4. Neither would focus consistently on my K-7. I have not tried one since I got the K-5. I really want a WR lens in the 50mm +/- focal length. I keep hoping Pentax will get it QC up to at least average standards. I will probably get the D-FA* 100mm macro as its not SDM. I still don't own an SDM lens and I currently don't see me buying one given the problems.
Maybe Pentax will release a D-FA* 50mm F/1.2 with SDM2 with the new full-frame.
I find my Sigma 50mm and 85mm to have really good bokeh.