Jim, I think that the 500mm that was modified was a screw mount lens. I know the one that I saw locally for sale is, and my big concern is all that weight hanging on a flimsy M-42 adapter.
Walt > What am I missing here? My Pentax K500/4.5 mounts just fine on both my > K1000 film body and my K20D digital body, with no problem in focusing to > infinity. Of course, focusing is manual unless I use my F1.7x AF > Teleconverter behind the lens... -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
