Originally posted by sbh Thanks, I didn't know that. I do have the 55 and I love it on my K-5iis. My best lens. Back then when I got the K-1, I made a quick test against a white wall from 2m distance and it had dark corners. Haven't used it on the K-1 since then. Maybe I should try again and compare it to my FA43. I thought I might sell these two and get the upcoming DFA 50mm to replace these two!?
Yeah, full frame lenses vignette. Pentaxians have missed out on this unless they come from the Age of Film.
You'll be able to show this on practically every lens.
At top is the famous Canon 50mm f1.8, courtesy of Ken Rockwell, beneath it the Nikon f1.4.
We haven't seen it yet, but yes, you could sell both your DA*55 and FA43 to get what will surely be a great normal prime in the DFA.