EF 300mm f/4 L IS USM

The Canon EF 300mm f/4L IS USM is a telephoto prime lens designed for Canon EF-mount DSLRs, providing a 300mm focal length on full-frame cameras and an equivalent 480mm reach on APS-C sensor models. The lens incorporates two ultra-low dispersion elements and Super Spectra coating to minimize chromatic aberrations and flare, delivering high clarity and color accuracy across various lighting conditions. An optical image stabilizer reduces camera shake by up to two stops, enabling reliable handheld shooting and operation in low-light scenarios, with both standard and panning-optimized stabilization modes available.

The lens features a ring-type ultrasonic motor for fast and quiet autofocus performance with full-time manual focus override, along with a rounded eight-blade diaphragm that produces pleasing out-of-focus rendering for selective focus work. As a member of Canon's L-series, it includes weather-sealed construction to resist dust and moisture, a removable rotating tripod collar for stable mounting, and is compatible with Canon's 1.4X and 2X teleconverters for extended reach when needed.