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I bought a Nikon FG today, with 2 lenses and a load of accessories. One of the two lenses is kind of a mystery, as there's no manufacturer name on it. I'm trying to figure out who's the manufacturer, the year of production, and the model. I can only say that is a 28-85mm with macro, Nikon F mount, 62mm diameter, multy-coated. On the front it also says CCT and CPC. And then Auto Zoom (?). On the side it says Made in Korea. This is a link to a video where I just show the lens: http://www.youtube.com/watch?v=E_-vEnFKV3Y

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  • \$\begingroup\$ I think "CPC" is Combined Products Corporation, a former Pentax subsidiary which made lower-cost closed-circuit television lenses (that's the CCT). I had no idea that these came in F mount, though. \$\endgroup\$
    – mattdm
    Sep 30, 2012 at 19:23
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    \$\begingroup\$ @mattdm lots of special purpose industrial or scientific lenses and cameras use the F mount as a sort of convention. The C mount is more common with CCTV lenses though due to the use of smaller sensors. \$\endgroup\$
    – Matt Grum
    Sep 30, 2012 at 21:01

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It's a Cosmicar (Pentax subsidiary) lens, which is a basically Pentax lens without the Super Multi-Coating. While the subsidiary was primarily aimed at the CCT lens market, they did make a few different lenses on the K-mount and also some others such as the Nikon F-Mount and Yashica apparently.

A little, very little, history here:

http://kmp.bdimitrov.de/technology/non-SMC.html

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