The Canon EF 100-400mm f/4.5-5.6L IS II USM is a professional telephoto zoom lens that blends reach, sharp optics, and durability for demanding shooters. Designed for full-frame EOS DSLRs, and offering a 160–640mm equivalent on APS-C, it is well-suited for wildlife, sports, and action. The optical design incorporates one fluorite and one Super UD element to reduce chromatic aberrations and maintain clarity, sharpness, and accurate color. An Air Sphere Coating (ASC) minimizes flare and ghosting, delivering high-contrast results even in strong backlight. A rounded nine-blade diaphragm produces smooth, pleasing bokeh. For handheld shooting, a four-stop Optical Image Stabilizer reduces shake with modes for general use, panning, or exposure-only stabilization. Fast, accurate, and quiet autofocus is driven by a ring-type Ultrasonic Motor (USM), advanced algorithms, and a high-speed CPU, with full-time manual override available. Practical handling is aided by a rotation-type zoom ring, adjustable zoom torque, and an updated tripod collar that can be detached without removing the lens. The robust barrel is weather-sealed against dust and moisture, while fluorine coatings on exposed elements guard against smudges and fingerprints. The supplied ET-83D hood includes a side window for filter adjustments without detaching. Combining versatile reach, advanced stabilization, and rugged reliability, the EF 100-400mm f/4.5-5.6L IS II USM is a trusted telephoto zoom for professionals.Manufacturer Items Include:Canon EF 100-400mm f/4.5-5.6L IS II USM LensCanon E-77 II Lens CapCanon Lens Dust Cap E (Rear)Canon ET-83D Lens HoodCanon LZ1326 Lens CaseTripod CollarBundle Items Include:Canon EF 100-400mm f/4.5-5.6L IS II USM LensCanon Extender EF 2X IIIShoulder Bag64GB Memory Card