Ozeck — budget manual-focus 135mm f/2.8 telephoto prime sold across multiple 1970s SLR mounts
Ozeck was a rebadged Japanese lens brand supplying budget manual-focus optics to camera shops and mail-order catalogues through the 1970s and early 1980s, alongside contemporaries such as Soligor, Sun and Panagor. The 135mm f/2.8 was a standard short-telephoto sold across several SLR fittings.
Documentation on this catalogue-brand lens is limited. It follows the typical build for short-telephoto primes of its era: an automatic or preset diaphragm and an all-metal helicoid mount typical of independent Japanese lens houses supplying the M42 screw-mount and bayonet SLR markets. Element count, filter thread and weight are unconfirmed and omitted.
Wide-open rendering on lenses of this class is usually soft with visible spherical aberration and vignetting, sharpening by two stops down; colour leans warm from older lens coatings. The 135mm reach at f/2.8 gives useful subject separation for portrait work on film-era bodies.
These catalogue-brand telephotos trade cheaply, bought mainly by collectors adapting M42 or FD-mount glass to mirrorless bodies. Buyers should check the aperture blades move cleanly, confirm the fitted mount matches their camera, and inspect for haze or fungus.