The Canon EF 75-300mm f/4-5.6 III is a versatile telephoto zoom lens designed for Canon EF-mount DSLR cameras. Covering a focal length range of 75-300mm, this lens provides extended reach for photographing distant subjects, making it a practical option for wildlife, sports, portraits, outdoor events, and everyday telephoto photography. Its relatively compact and lightweight construction makes it a convenient choice for photographers seeking an affordable telephoto lens.
The variable f/4-5.6 maximum aperture helps maintain a portable design while providing flexibility across a variety of shooting situations. When used on Canon APS-C DSLR cameras, the lens offers an equivalent focal length range of approximately 120-480mm, providing additional reach for photographing subjects from greater distances.
The optical design incorporates multiple lens elements arranged to provide consistent image quality throughout the zoom range. Canon’s Super Spectra coating helps minimize lens flare and ghosting while maintaining contrast and accurate color reproduction, particularly when photographing in bright or backlit conditions.
A DC Micro Motor autofocus system provides responsive focusing performance for general telephoto photography. A dedicated AF/MF switch allows photographers to alternate between automatic and manual focusing depending on their shooting preferences. The lens also features an electromagnetic diaphragm for consistent aperture control during shooting.
A seven-blade diaphragm contributes to natural-looking background blur when working with selective focus techniques. The extended focal length range allows photographers to isolate subjects and achieve background compression, making the lens particularly useful for portraits and distant subjects.
Compatible with Canon EF-mount film SLR and digital DSLR cameras, including full-frame and APS-C models, the EF 75-300mm f/4-5.6 III offers a practical telephoto solution for photographers looking to expand their shooting capabilities without the size and weight of larger professional lenses.
– Condition Note:
The lens exhibits significant internal dust accumulation, along with visible fungal growth beginning to develop inside the front optical element. Cosmetic wear is also present, including scratches on the exterior lens barrel and zoom grip. The internal fungus and dust may affect image quality, particularly contrast and clarity, under certain shooting conditions.

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