It's not a mirror lens. The Tele-Takumars were early screw-mount telephoto lenses. These were produced from the mid-or late sixties to the very early seventies. After that came the Super-Multi-Coated Takumars - made until about the mid seventies.
http://www.aohc.it/ might have some info on these lenses. Shel > [Original Message] > From: Powell Hargrave > What is this lens? I could find no info on the net. Looks like a mirror lens. > > Asahi opt.co., JAPAN 1:5.6/400 8029840 Super-Multi-Coated Takumar. - on front > of lens. > > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7529718022 > > I was tempted but didn't bid.
