Canon EF 75 - 300 mm f/4-5.6 III USM Lens(Black, Telephoto Zoom Lens) Be it wildlife, portraits or shooting sports, this Canon EF 75 - 300 mm f/4-5.6 III USM Lens developed with Micro USM makes autofocusing faster and quieter to obtain perfect shots anytime. Design Constructed with 13 elements in 9 groups, the Canon EF 75 - 300 mm lens comes with a fully electronic lens mount. The lens is built with super spectra coatings, sports a lightweight design and has a filter attachment size of 58 mm. The micro Ultra Sonic Motor (USM) performs quick and silent focusing. Performance With a minimum focal length of 75 mm and a maximum focal length of 300 mm, the lens is suitable for various telephoto shooting opportunities, particularly in sports, nature and wildlife photography. The lens has maximum aperture of f/4 to 5.6 and a minimum aperture value of f/32 to 45. Features The lens is designed with front group rotating extension system for focus adjustment. It also has a switch that controls th...