Originally posted by JACOBY Question Will the lenses from a Ricoh XR-P fit my k7 or do I have to worry about the dreaded pin I always hear about. Thank You And this site is great.
It depends on how old the lens is. I believe most of the lenses that were released around the time the XR-P was sold had the rounded, "ball" shaped pin which is harmless. Of course, without seeing a picture, it is possible that some of your lenses predate the XR-P body.
The best way to tell is by direct inspection. If the little brass pin is rounded, like the tip of a ballpoint pen, you are safe. If it looks like a cylinder with a flat tip, you will have trouble.
There are some photos posted here:
https://www.pentaxforums.com/forums/54-pentax-lens-articles/87589-photos-k-m4...-k-mounts.html
The third picture down, of a Sigma 24mm f/2.8, shows an example of a safe Ricoh pin, about 180 degrees opposite to the red dot.
If you are still nervous, post photos of your lenses (the mount side of course) for comments.