Overview The Canon 5176B013 is a professional-grade EF-mount zoom lens designed for photographers who need versatile telephoto reach with consistent brightness. Covering a focal length range from 200 to 400 millimeters at a constant f/4 aperture, it excels in capturing fast-moving wildlife, sports action, and distant subjects with sharpness and clarity. An integrated 1.4× extender expands the zoom to 280-560 millimeters, allowing quick adaptation to changing scenes without lens changes or sensor exposure. Key features Zoom range from 200 to 400 mm that covers medium to super-telephoto subjects, ideal for wildlife and sports photography Built-in 1.4× extender activated by a lever, extending reach to 280-560 mm instantly without removing the lens Constant f/4 aperture throughout the zoom range ensures consistent exposure and depth of field control Fluorite and ultra-low dispersion glass elements reduce chromatic aberrations and maintain high contrast and color accuracy Image Stabilizer provides up to four stops of shake compensation, supporting handheld shooting and smooth panning Ring-type Ultrasonic Motor offers fast, precise, and nearly silent autofocus, essential for capturing skittish wildlife or live events Weather-sealed construction protects against rain, dust, and temperature changes, making it reliable in challenging outdoor conditions Fluorine coating on front and rear elements repels water, oil, and fingerprints, simplifying cleaning after use in the field Removable rotating tripod collar balances the lens on monopods or gimbals and allows quick switching between horizontal and vertical framing Compatible with full-frame and APS-C Canon EF-mount cameras, providing an effective focal length up to 896 mm on APS-C bodies Key specs Focal length: 200-400 mm (280-560 mm with extender) Maximum aperture: f/4 constant Lens elements: includes fluorite and four ultra-low dispersion elements Image Stabilizer: up to 4 stops of shake correction Autofocus motor: ring-type Ultrasonic Motor Mount type: Canon EF Weather sealing: full sealing against dust and moisture Coating: fluorine coating on front and rear elements Tripod collar: removable and rotating Connectivity and compatibility This lens is designed exclusively for Canon EF-mount cameras, supporting both full-frame and APS-C sensor formats. When mounted on an APS-C body, it offers an equivalent focal length range of approximately 320-896 millimeters, which is especially useful for birdwatchers and aviation photographers seeking extended reach without additional teleconverters. Performance and reliability The combination of advanced optical elements and a four-stop Image Stabilizer ensures sharp images even in low light or when shooting handheld. The fast and quiet autofocus system allows you to track moving subjects smoothly without disturbing wildlife or interrupting live broadcasts. Its robust weather sealing and fluorine coatings make it dependable in various outdoor environments, from dusty safaris to rainy sports fields. Ideal uses and environments This lens suits photographers who require flexible telephoto zoom capabilities with quick adaptability, such as wildlife photographers tracking animals in motion, sports photographers capturing fast-paced action, and birders needing extended reach. Its weather resistance and image stabilization make it a strong choice for outdoor use in diverse conditions, while the integrated extender saves time and reduces gear changes during critical moments.
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