Originally posted by pepperberry farm if it was an Adaptall lens, it doesn't matter what mount is on it - you can change it to a K or KA in a couple of seconds...
if you were serious about it, go back and take another look...
I don't know how much an Adaptall adaptor would be for the Pentax, but for a lens costing less than a $100 searching and finding the correct mount would add time and cost. To be honest I was only taking a passing interest, so I don't think I'll be going back.
On another topic I picked up a second hand Sigma 28-90 macro lens this morning from a local "we'll buy your stuff off you for cash" chain store. $60 and it really just needs a bit of a clean, although I was looking at another lens they had (Tokina 60-300) but again this one didn't want to fit on the K100D body and had a dodgy aperture movement.
Perhaps it's worth starting a thread on purchasing second hand lenses, things to look out for etc. Alternatively do we have a thread with more information on lens mounts and why they don't want to fit. The Tokina had markings on the body end and cap of "SA / PfK" as does the Sigma that I ended up getting.