[p0opstlnksal0t]

well ive come to find out my pops has quite a few of these lenses, and ive seen adapters for these big guys on ebay. do they perform worthwhile on aps-c dslr's? how would they crop down to size on such a camera?

[Jewelltrail]

I regularly shoot 67 lenses on my K20 with an adapter I got on Ebay. It is a cool setup I think. Here is a thread I started sometime back on the subject. https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/49428-medium-f...20-sensor.html This thread should answer all your questions, but ask if any new ones come up.

Also, here is a shot from my 67 55mm f4 lens on the K20d. Best!
[IMG][/IMG]