75-300mm f/4.5-5.6 Alpha A-Mount Telephoto Zoom

The Sony 75-300mm f/4.5-5.6 Alpha A-Mount Telephoto Zoom Lens is a variable aperture zoom lens designed for Sony Alpha and Minolta Maxxum series DSLR cameras with APS-C or full-frame sensors. On APS-C bodies, the lens delivers a 35mm equivalent focal length of 112.5-450mm, enabling a 4x optical zoom range for capturing distant subjects without changing lenses. The optical design consists of 13 elements arranged in 10 groups that provide sharp performance throughout the zoom range, with a minimum focusing distance of 4.9 feet and a 55mm filter diameter.

The lens features a variable aperture that ranges from f/4.5 at 75mm to f/5.6 at 300mm, with aperture values extending to f/28-32 when stopped down. The seven-blade circular aperture design produces smooth, rounded bokeh effects in out-of-focus areas, making it suitable for both daytime telephoto work and low-light shooting.