Canon EF 100-400mm f/4.5-5.6L IS USM Lens

The Canon EF 100-400mm f/4.5-5.6L IS USM is a full-frame telephoto zoom lens built for Canon’s EF mount DSLR system and positioned within Canon’s L-series lineup, representing the higher tier of Canon’s optical and mechanical standards. Covering a focal range from 100mm to 400mm with a variable maximum aperture, it addresses a broad range of professional telephoto applications including wildlife, sports, aviation, and nature photography where extended reach and optical quality are priorities. The push-pull zoom mechanism distinguishes it from conventional rotary zoom designs, allowing the focal length to be changed with a single forward and backward motion of the zoom ring. Optical Image Stabilization provides effective compensation during handheld shooting at longer focal lengths, and the ring-type USM motor delivers fast, quiet, and responsive autofocus performance suited to tracking moving subjects. Dust and moisture resistant sealing throughout the barrel adds reliability in demanding outdoor shooting conditions.

– 100-400mm telephoto zoom focal range
– Variable f/4.5-5.6 maximum aperture
– Canon L-series optical and mechanical standards
– Push-pull zoom mechanism
– Optical Image Stabilization
– Ring-type USM autofocus motor
– Dust and moisture resistant sealing
– Canon EF mount compatibility
– Full-frame and APS-C format coverage