Overview

The Tamron 135mm f/2.5 Adaptall-2 model 03B is a compact, metal-built manual focus lens from 1979, offering a fast f/2.5 aperture that enables shallow depth of field and characterful bokeh. It is not especially sharp wide open but becomes very sharp at f/4. Build quality is excellent, with smooth focus and aperture rings. It suits portrait and low-light photography, and is affordable, typically £25-40 used.