I Have searched, and I must admit that the workings of this forum are a mystery to me, but I need advice. I have a number of lenses that are compatible with the Ricoh xrp, which I liked very much. My question: has anyone had experience with using the ricoh lenses on the Pentax K10D. If so how does it work out. Focus, to infinity? exposure, How does that work. Please help, I don't want to abandon my Ricoh K mount lenses if I don't have to. PS: I am aware that the pin must be removed from the lenses. Thanks in advance

Maybe try the Pentax Forums. I think it is www.pentaxforums.com. Or perhaps the forums at dpreview.com. I don't think there are a lot of pentax users here.

It's not advisable to use Ricoh lenses on pentax cameras.

Although they share the K mount they are not compatible due to the pin positioning.

A google search for "Ricoh Pentax Stuck Lens" will demonstrate why.

Andy