The Tamron 70-150 mm f/ 3.5 Adaptall-2 model 20A is a telephoto zoom lens with constant lens speed for 35 mm SLR cameras popular in the 1970-90s (via the interchangeable Adaptall-2 mount).
The lens features a push-pull design (focal length is changed by pushing or pulling the focus ring, and in so doing the lens length is changing). It is multicoated. The lens is equipped with a built-in hood.
At a focal length of 70 mm it enables you to take 1:3 macro scale pictures.
As compared with the first variant (model 02А), the lens has been considerably redesigned and features improved optical characteristics.
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Posted by: Nik_SSG Date of publication: 17.07.2011