Overview

The Tamron 135 mm f/3.5 T mount model 860 is a telephoto prime for 35 mm SLRs, popular from the 1960s-90s via the interchangeable T/T2 mount. Optical strengths include decent sharpness, but weaknesses may involve chromatic aberration and flare. Build is all-metal with smooth focus, though handling is manual-only. It suits vintage camera enthusiasts or those seeking an affordable telephoto for adapted mirrorless use.