Overview

The Telear-5 250 mm f/5.6 is a Soviet-era telephoto lens for medium format 6x6 cm SLR cameras, later sold as Arsat. It features multi-coating and an instant-return aperture. Optical performance is moderate, with resolution rated at 55 lpmm center and 40 lpmm edge. Build quality is typical of its era, with B and V bayonet mounts. It suits medium format photographers seeking a compact, affordable telephoto option, though edge sharpness may be a limitation.