SMC K24/2.8
@f8
As usual, I left a full sized sample on flickr.
No much to complain about this lens for me, one of the smaller slr 24/2.8 out there typical of Pentax, flare resistant smc coating, wide enough for quite a bit of things on FF.
Sharp (very) in the center wide open and overall sharp stopped down to f5.6 and above.
This lens can do much more of course.
I will update with f2.8 and other f-stops when the pictures at those settings come about.
Edit :14Jan2014
@f2.8
@f5.6
This was a favourite for me on aps-c, on FF, I do think its even better now.
Very portable as its so small, and now, its even wider at 24mm.
Bokeh is generally ok too, which is already good compared to may wide angles of the 24-28mm focal length,