Sony Vario-Sonnar T* DT 16-80mm f/3.5-4.5 ZA Lens

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available from Wikipedia or other free sources online. The Vario-Sonnar
T* DT 16-80 mm f/3.5-4.5 ZA is a high-quality zoom lens compatible with
cameras using the Sony ¿, and Minolta AF lens mounts. It was designed by
Carl Zeiss and is manufactured under license by Sony. The lens is
designed specifically for use with APS-C sized image sensors, and thus
will result in vignetting on 35 mm (full frame) cameras. When the 1.5×
crop factor of current Sony digital single-lens reflex cameras is
considered, the lens has an effective equivalent 24-120 mm focal length.