Hey, who is shooting with Pentax? I recently uncovered a lens I am fairly sure works with Pentax cameras. 135mm 2.8, manual all the way. It's dusty but should work (no caps). If it works I'll let it go for a song.
it's an off brand and dusty, but if it works and you want it I can't see asking more then $25 for it, better yet, contribute $25 to the DPG fund. I'll bring it to the next meeting and let y'all look at it and decide if its worth it.
bayonet, and I think the brand is Mirage. This lens is probably about, erm... fifteen years old, photo quality was fine when I used it. All the parts seem to move ok. It was used on a K100 (my first ever SLR). There is a fair bit of glass in this thing and it's metal not plastic