Originally posted by noblepa
So, be careful of any Ricoh branded lens...
Whoa! Yes, take care, but be aware that of the hundreds of Ricoh lens models out there, the only ones with the infamous pin are those with a green "
P" on the aperture ring. If a Rikenon, the lens face will also be marked as Rikenon-
P.
Rikenon = OK
Auto-Rikenon = OK
XR Rikenon = OK
Rikenon P = NOT OK (in general...some have the ball-type pin...)
Even beyond the lens marking, detecting the hazardous mount is easy. If it is not a Pentax-brand lens, simply look/feel for any spring-loaded protrusion (the pin) that might drop into the AF drive slot. No pin...no problem.
Steve