Tamron 60-300mm f/3.8-5.4 (23A) - Tamron Adaptall-2 Mount

The Tamron 60-300mm f/3.8-5.4 (23A) is a versatile telephoto zoom lens featuring a push-pull design and a dedicated macro mode. Offering a 5x zoom ratio, it provides a 1:1.55 maximum magnification at the 60mm setting. It utilizes the Adaptall-2 interchangeable mount system, allowing it to be used across various 35mm SLR platforms with the appropriate adapter. The lens is noted for its solid construction and surprisingly capable close-up performance for a vintage zoom. When inspecting a used 23A, focus on the smoothness of the push-pull zoom mechanism; these can become loose or 'creep' over time. SDS checks for internal dust and fungal growth, which is common in older telephoto zooms with many internal elements. Ensure the macro engagement ring operates freely without binding. We also verify the aperture blades are free from oil and react quickly when the stop-down pin is engaged.