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06-26-2015, 10:27 PM   #1
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f1.7/50...whos? <<<solved>>>

I bought an f1.7/50 with a Sears KSX Super SLR attached to it. The lens has no 'bezel' telling me what it is as it looks like it was knocked off as evidence of a small dent in the threads. I think its an Auto Sears MC 50 1.7 maybe made by Ricoh but it doesnt have the Ricoh pin, the P setting, nor the 3 screws that hold the black plastic inner part at the rear of the mount as the Ricoh XR Rikenon has . Could it be a Chinon? Most Chinons have orange feet markings, this one has green. No big deal, just wish I could determine what it is.

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Last edited by pishta; 06-27-2015 at 12:36 PM.
06-27-2015, 04:30 AM   #2
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I'm pretty sure this is a Rikenon 1,7/50 RICOH RIKENON 1: 1.7 / f= 50 mm Pentax analog Bajonett PK | eBay
06-27-2015, 11:49 AM   #3
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Thanks, identical but mine has greenish ft markings, but its so close it could be white balance of picture thats off. I bought it for $5 and that included the film camera at a thrift store.

PS: just confirmed as being a Rikenon 50 1:1.7 from the serial number 372176 being 30 off of a known Rikenon sample. Nailed it!

Last edited by pishta; 06-27-2015 at 12:34 PM.
06-27-2015, 05:32 PM   #4
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QuoteOriginally posted by pishta Quote
Thanks, identical but mine has greenish ft markings, but its so close it could be white balance of picture thats off. I bought it for $5 and that included the film camera at a thrift store.

PS: just confirmed as being a Rikenon 50 1:1.7 from the serial number 372176 being 30 off of a known Rikenon sample. Nailed it!
Not a bad lens at all. Cant beat $5 bucks

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