Canon EF 100-400mm f/4.5-5.6L IS II USM LensThe Canon EF 100-400mm f/4.5-5.6L IS II USM is a premier L-series telephoto zoom, widely regarded as the gold standard for sports, wildlife, and action photography. This second-generation lens introduces significant upgrades over its predecessor, including a refined rotation-type zoom mechanism and a state-of-the-art 4-stop Optical Image Stabilizer. Engineered to deliver uncompromising sharpness and clarity across its massive reach, this lens is built to perform in the most demanding environments. Elite Optical EngineeringFluorite & Super UD Optics: The optical path includes one fluorite element and one Super Ultra-Low Dispersion (UD) element. This sophisticated glass combination effectively eliminates chromatic aberrations and distortions, ensuring tack-sharp imagery and faithful color reproduction at every focal length. Air Sphere Coating (ASC): Canon’s advanced ASC technology significantly reduces backlit flare and ghosting. This allows for high-contrast, clear images even when shooting in harsh lighting or toward strong light sources. Versatile Reach: While designed for full-frame EF-mount DSLRs, it serves as a powerful super-telephoto on APS-C cameras, providing a massive 160-640mm equivalent focal range. Performance & Handling3-Mode Image Stabilization: The 4-stop effective IS system features three dedicated modes to suit your shooting style: Mode 1: Standard stabilization for stationary subjects. Mode 2: Optimized for horizontal or vertical panning. Mode 3: Stabilization active only during exposure, ideal for following erratic, fast-moving action. Ring-Type USM Autofocus: A high-speed CPU and optimized AF algorithms paired with a powerful Ultrasonic Motor (USM) deliver near-instant, silent focus. Full-time manual focus override is always available for fine adjustments. Customizable Zoom Tension: A dedicated torque adjustment ring allows you to personalize the “feel” of the zoom rotation—from loose for fast zooming to tight to prevent lens creep when carrying the camera. Professional Field ReadinessRedeveloped Design: The rotation-type zoom ring provides intuitive, precise handling, especially during handheld use. The tripod collar has also been redesigned to be attached or removed without taking the lens off the camera. Rugged Weather Sealing: As a member of the L-series, the barrel is fully sealed against dust and moisture. Fluorine coatings on the front and rear elements repel fingerprints, oil, and water for easy maintenance in the field. Smart Lens Hood: The included ET-83D hood features a convenient side access window, allowing you to rotate specialty filters (like circular polarizers) without removing the hood. Technical SpecificationsFocal Length: 100-400mm (160-640mm on APS-C) Aperture Range: f/4.5–5.6 to f/32–40 Lens Mount: Canon EF Filter Size: 77mm Weight: Approx. 3.46 lbs (1570 g)
