Canon EF 300mm f/2.8L IS USM

The Canon EF 300mm f/2.8L IS USM is a professional-grade telephoto lens renowned for its exceptional sharpness, fast f/2.8 aperture, and robust build quality. Unlike its RF counterpart, this EF version requires an adapter when used on mirrorless bodies, increasing overall length and weight. The RF 300mm f/2.8L IS USM offers improved image stabilization (up to 5.5 stops versus 2 stops), faster communication with the camera body, enhanced weather sealing, and updated optical design for better aberration control, though the legendary EF version remains a favorite among sports and wildlife photographers for its reliability and stellar image quality.