Originally posted by BruceBanner Where's the love for this lens?
Unfortunately, I don't own a K-1, so I can't comment on the lens' performance on a full frame camera.
However, I just acquired the DA 20-40 after doing an extensive review of online comments, images, and reviews across a number of sites. I found that the comments from users were overwhelmingly positive, and many of the images I looked at were terrific. There's lots of love out there for this lens, for sure.
I haven't used the lens extensively yet on my K-3 II. My initial tests show that my copy is not de-centered and corner sharpness is good. My first images of the neighbourhood fire hydrants, road signs, mailboxes, parks, houses and such are showing that the lens does indeed live up to its positive rep, and I like the images more than similar ones I had taken with my DA 18-135.
With a bit of searching, I think you'll find plenty of glowing reports here on PF (and also at DPReview Pentax SLR Talk). The lens is not loved universally, but I don't think any lens is. The thread that @W412ren provides is particularly useful to see a range of great pictures from the lens.
- Craig