Originally posted by Dobson I am now waiting delivery of my Pentax k1.
Can anyone tell me what to expect by using 35mm SMC lenses
and also my Pentax 6x7 lenses, I have the adaptor.
I've done very limited tests of quite a few older lenses at mid apertures on my A7r. Many were fine, with very good sharpness out to the corners. Chromatic aberration was easily correctable in most cases.
A few were busts, but I need to retest those as I discovered a tripod issue after I did the testing. One area that was ambiguous was the corner performance of some wide angles. This is because the filter stack of the A7r can cause problems with some wides. I look forward to seeing how these perform on the K-1 with a filter stack optimized for the Pentax registration distance.
I'm not going to get too far into specific lenses because we will soon be seeing users' comments actually based on the K-1. However, I'll say that I found the FA 28/2.8 and F 70-210 surprisingly good. The A 70-210 is also fine. All the 50s, of which I have many, were good. (Don't have a K-mount 50/2.) I was pleasantly surprised by the M K and SMC Takumar 200s. 135s were mixed (tripod?).
I'm sort of an old lens geek, so I'm looking forward to seeing what people have to say.