Pre-Owned - Tamron 35-70mm f3.5-4.5 Multi Coated for Olympus

The Tamron Adaptall-2 35-70mm f/3.5-4.5 (Model 09A) is a vintage manual focus zoom lens known for its compact design and versatile "CF" (Continuous Focusing) macro capability. It uses the Adaptall-2 system, which allows it to be mounted on various camera bodies, including the Olympus OM system, by using a specific interchangeable mount adapter.

Performance and Design:

Optical Quality: Reviewers on OM Experience describe the lens as sharp at most apertures and focal lengths, noting it provides excellent contrast with well-controlled aberrations.

Macro Function: The lens features a Continuous Focusing (CF) macro mode that allows for a 1:2.8 magnification ratio at the 70mm setting.

Build: According to Adaptall-2.com, it was introduced in 1980 and features a compact 7-element, 7-group design weighing approximately 11.4 oz (322g).

Variants: It was succeeded in 1983 by the Model 17A, which offers a constant f/3.5 aperture but maintains nearly identical optical performance.