All About Photographic Lenses. Specifications, comparison, reviews, MTF-charts for lenses by Canon, Nikon, Sony, Pentax, Olympus, Sigma, Tamron, Carl Zeiss, etc.
The Tamron AF Zoom 70-210 mm f/ 4 IF Adaptall-2 model 47A lens is equipped with the internal autofocusing system and the mount for interchangeable Adaptall-2 rear parts. Phase autofocus may operate in continuous and single modes.
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