Overview

The Tamron 105mm f/2.5 Adapt-A-Matic is a rare manual focus lens with a built-in hood and non-rotating front element. Optically, it delivers excellent sharpness at f/2.5, smooth bokeh, and good flare resistance. Build quality is typical of the Adaptamatic line with a distinct style and odd mounting system. It suits collectors and users seeking a sharp, well-behaved portrait lens, possibly sharing optical design with later Adaptall versions.