Don, tell us how it behaves when you get a chance to use it!
It also has a 58mm filter size where the 35-105 has a 67, so perhaps flare will be OK.
A puece of information that we find in the Pentax boklet about their lens line is that to avoid vignetting at 1.5 meters with lens between 60mm and 70mm, you need to put 67mm filters over the bottom part of the lens hood, which is in fact a 58-67 step-up ring. That means that for all practical purposes, 58mm filters are fine and I shouldn't have even mentionned that limitation!
A better hood for this lens is the round rubber "zoom" hoods made by Hoya and Hama. If you are inclined to use such a hood, I'll test both brands to tell you which one is the best.
Andre
