Tamron 70-350mm F/4.5 2 Touch (05A)/Requires Adaptall Lens Review

The Tamron 70-350mm f/4.5 2-Touch (05A) is a vintage telephoto zoom lens from Tamron's Adaptall system, which requires an Adaptall mount adapter to fit modern or period camera bodies. Originally designed for film cameras, this lens offers a versatile telephoto range suitable for wildlife, sports, and distant subjects. The 2-Touch design refers to its dual-ring control scheme: one for zoom, another for focus, a layout that was common in manual-focus zooms of its era. At 82mm filter thread, it's a substantial lens built in an age when all-metal construction was the norm. The asking price of $142 for an EX+ (Excellent Plus) example from KEH suggests a well-preserved copy with minimal wear. Because this is a legacy manual-focus lens without electronic contacts or autofocus, it's best suited to photographers comfortable with manual operation or those adapting vintage glass to mirrorless systems for creative or budget telephoto reach.