Originally posted by nostatic I frankly did not get good results with the 77 and K7. 31 and 43 were better behaved. I never did figure out what the issue was (washed/blown images) as the 77 is absolute magic on my K20d.
hmmm...it seems that that DA LTDs are optimized much better with the K-7 compared to the FA LTDs. I could only assume that the DA 21 would really have nice results.
anyway, I believe that any premium Pentax glass, regardless whether if it's a LTD or not, could produce the same sharp results. both with superior optics but differ in build. other differences may be in color rendering, coatings and number of elements. but that doesn't mean that the others are inferior to it, or are they?