Meyer-Optik's Telemegor 180mm f/5.5 — a slim, collectible German M42 telephoto prime.
The Meyer-Optik Gorlitz Telemegor 180mm f/5.5 is a German telephoto prime made by Meyer-Optik of Gorlitz, produced in M42 mount among others. The Telemegor name marked their line of telephoto lenses, and this 180mm was a medium-long reach option in that range, a collectible vintage telephoto.
This is a manual-focus M42 screw-mount lens with a 180mm focal length and a maximum aperture of f/5.5. Focus is by hand over a long helicoid, and Telemegors typically used a preset aperture set on the barrel. It is an all-metal telephoto of slim proportions for its length. Detailed element figures are not asserted here beyond the verified focal length and aperture.
At 180mm the lens gives useful telephoto reach for portraits, distant subjects and compressed landscape perspectives, and the modest f/5.5 aperture keeps it relatively slim. Meyer-Optik telephotos of this type render cleanly stopped down with pleasant character, suiting deliberate long-lens work rather than fast action.
Used copies are collectible and less common than the standard primes. Inspect the long barrel for internal haze and fungus, confirm the aperture and preset ring work smoothly, and check focus over the long travel. Verify the M42 mount before purchase. An M42 adapter allows characterful telephoto use on mirrorless with a support.