Paul, Will a Ricoh P series lens work in program mode on an A series Pentax such as a Super Program?
Thanks, Jim Fellows ----- Original Message ----- From: "Paul F. Stregevsky" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, June 29, 2002 12:39 AM Subject: Rikenon P lens lineup (was: FS: XR Rikenon Macro 28-100/4, $90) > Jim Apilado <[EMAIL PROTECTED]> wrote: > Do you know what primes Ricoh made that the the P setting? > > Ricoh K-mount lenses before the P were called XR Rikenon. P lenses dropped > the XR and are called simply Rikenon P. Ricoh's muticoating began to be > applied before the P series; the MC on my 28-100 and my 300/4.5 is a > beautiful purple-blue. > > Off the top of my head, the P (program) lineup included the following: > > Primes: > 24/2.8P > 28/2.8P > 35/2.8P (some say the same design as Pentax M and A) > 50/1.4P (a different design as its predecessor, and now multicoated) > 50/2P (same design as its predecessor, still single-coated) > 55/1.2P > 100/2.8P > 105/2.8P (105?) 1:1 macro > 135/2.8P > > I don't think Ricoh's XR Rikenon 18/2.8 was converted to a P version. I'm > nearly certain the XR Rikneon APO 300/4.5 was not. > > > Before converting to the K mount, Ricoh made a wide series of screwmount > lenses; I don't know how good they were. I believe a 20mm was among them. > > Not that you asked, but the P zooms included: > > 24-40/2.8 P zoom (evidently made by Tokina and identical except that > Tokina's also works in Program setting for Pentax; thanks, Peter) > 28-100/4 P > 28-105 f/3.5-4.5 P > 35-70 f/3.4-4.5 P (replacing the 3.5-4.5; I had the 3.4 vs. 3.5 backward a > week ago) > 70-210/3.9 P > probably more (a slow 60-300? a slow 100-300?) > > Since Ricoh introduced its program bodies about the same time as Pentax > (about 1983-84), many K-mount third-party lenses made after that included > the P setting for Ricoh bodies as well as the A setting for Pentax. I > believe that later specimens of the Vivitar 105/2.8 macro is one example. > Such lenses make great sense for those wishing to mix up their body lineup > with a P-type Ricoh. But beware, as has been stated here many times: Never > put a Rikenon P lens on a Pentax autofocus body; the P pin will lock into > the Pentax AF hole, and you may never get the lens off. > > > > Paul Franklin Stregevsky > - > 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 . - 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 .
