A far-flung telephoto zoom featured by an experienced optical design and upgraded image stabilization technologies, theĀ Canon EF 100-400mm f/4.5-5.6L IS II USM LensĀ is a member of the famous L-series made for full-frame EOS DSLRs. One fluorite element and one Super UD element have been inducted into the lens’ construction, and both help to minimize aberrations and distortions throughout the zoom range in order to achieve better clarity, image sharpness, and faithful color reproduction. An Air Sphere Coating has also been coated to lens elements in order to minimize lens flare and ghosting for a better contrast-rich image. Gaining the optical components of the lens, a four-stop effective Image Stabilizer helps to reduce the camera shake and can be devoted to various styles of shooting. Moreover, a new-made rotation-type zoom ring twin with an internal focusing mechanism, and an Ultrasonic Motor, to produce fast and inherent handling while handheld shooting. Placed as an adaptable option for sports and wildlife photographers, this lens’ list of attributes makes it a feasible telephoto zoom for different shooting applications.
Featured with a weather-resistant barrel, this lens also features fluorine coatings on the front and back elements for guarding against fingerprints and smudges from affecting image quality. Zoom control is acclaimed by a dedicated tension ring for adjustable zoom torque. Additionally, other clarified design elements have a tripod collar that can be attached or detached with the lens mounted to the camera and an included lens hood that allow easy control over specialty filters with the hood in place.
- Telephoto zoom can be used with full-frame EF-mount DSLRs, as well as APS-C-format models where it produces a 160-640mm equivalent focal length range.
- One fluorite element and one Super Ultra-Low Dispersion element help to right chromatic aberrations throughout the zoom range for achieving a high degree of sharpness, clarity, and color accuracy.
- An Air Sphere Coating has been applied to lens elements to minimize backlit flaring and ghosting for preserved light transmission and high contrast in strong lighting conditions.
- An Optical Image Stabilizer helps to reduce the camera shake by up to four shutter speed stops to upgraded enable working in low-light conditions and with slower shutter speeds. Additionally, three dedicated image stabilization modes are aptāStandard, Panning, and During Exposure Onlyāand can be selectively employed to suit different types of shooting.
- A ring-type Ultrasonic Motor together with optimized focusing algorithms and a high-speed CPU is recruited to deliver quick, precise, and silent autofocus performance as well as full-time manual focus override.
- The rotation-type zoom ring gives precise adjustment between zoom positions, especially while shooting handheld, and a zoom torque adjustment ring makes the easy setting of the zoom tension for personalized control.
- A weather-resistant design saves the lens from dust and moisture to make its use in difficult conditions. Additionally, fluorine coatings have also been coated to the front and rear lens elements for protection against fingerprints and smudging.
- The rounded nine-blade diaphragm contributes to a pleasing out-of-focus quality that benefits the use of shallow depth of field and selective focus techniques.
- A redeveloped tripod collar can be attached or detached from the lens without removing the lens from the camera.
- The included ET-83D lens hood contains a side window for easier adjustment of rotating filters with the hood in place.
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