Sunagor — manual-focus 80-200mm f/4.5-5.6 budget telephoto zoom, sold across most 1980s SLR mounts
The Sunagor 80-200mm f/4.5-5.6 is a manual-focus telephoto zoom from Sunagor, the Trans-World Trading-owned optical brand better known for binoculars. Sold through UK mail-order catalogues from the 1980s, it gave film SLR owners an affordable step beyond a kit lens.
It is a push-pull one-touch zoom with multi-coated (MC) optics and a manual aperture ring, sold in an 'ultra-compact' guise with a 52mm filter thread. Aperture runs from f/4.5 at 80mm to f/5.6 (f/5.5 on some boxes) at 200mm, with fully manual focus. Element count and minimum focus distance are not documented.
Rendering softens toward the long end and at wide apertures, with lower contrast than contemporary first-party 80-200mm lenses from Nikon or Canon. Its light barrel made it a common step-up lens bundled with entry-level SLRs, and today it turns up reversed for close-up work.
Surviving examples are cheap and plentiful on UK secondhand sites, most often in Pentax K and M42 fittings. Check the aperture blades for oil, confirm zoom and focus rings turn smoothly, and inspect elements for the haze and fungus common in old budget glass.