Ricoh had their "P" to equal the Pentax "A". However, the "P" was activated by a small pin that falls about where the Pentax AF connector falls. So, unless the lens is a third party that has Pentax contacts and the Ricoh pin, it won't work on Pentax bodies in any modes requireing the "A" setting. And be very careful using this on ANY Pentax AF body as the pin can get stuck in the AF connection and be difficult (or impossible) to remove. Bad a very bad experience with this.
> I just switched to an MZ-M from my trusty K-1000 a few months ago and have > been VERY slow in reading the manual. Tonight I just got to the "automatic > aperture" adjustment on the lens. While my Ricoh Rikenon 50mm lens has no > "A" > setting on the aperture ring it does have a "P" which I assume is for > "Program". I set it to "P" but nothing happened, it is still acting like > I should be setting the aperture by hand. The camera is not responding to > this setting. - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
