Originally posted by stevebrot Good find! The XR Rikenon 35/2.8 is widely considered to be evil twin to the Pentax-M 35/2.8. The two are identical except for the beauty ring and perhaps coatings; both are excellent.
Steve
Yeah that's what I've read on a few sites, the theory shared between them is that it's a rebadged Pentax-M.
Over the past year or so I've seen the Rikenon pop up for sale a couple times (on here, Keh, & ebay) for around the same price I paid for, but didnt have the money to get it at that time.