At least to me it is major!
I've bee reading about all over for this "great" lens. After losing
out on one in an eBay auction a few months back by being too cheap to
bid a decent price for it, I was really wanting very badly to add
this one to my collection. Finally, I decided that I would pull the
trigger on an "as brand new" condition one that I had known of a
source for some time, but didn't want to pay the big dollars. I ended
up paying probably too much for it, but considering what some of the
prices have been lately for fine Pentax glass, I figured that for an
excellent copy of this lens it would be money well spent. Now I see
for myself what the hype is all about. The only complaint I have with
it is the lack of a tripod collar. Here if one of my first images
with the lens taken with my *istDS:
http://i.pbase.com/o4/87/63987/1/57940041.FA3003.jpg
JayT