The EF 200-400mm f/4L IS USM Lens with Internal 1.4x Extender from Canon is a high-performance super-telephoto zoom lens with a built-in 1.4x extender that converts the focal range and maximum aperture to 280-560mm f/5.6. The extender is located at the base of the lens and applied with a simple lever switch. The EF 200-400mm f/4L IS USM Lens features one Fluorite and four Ultra-low Dispersion optical elements that deliver sharper images with fewer chromatic aberrations. Super-spectra lens coatings minimize ghosting and flare and a Fluorine coating on the front and rear lens elements keep oily smears and fingerprints to a minimum.
High performance L-series super-telephoto zoom with built-in 1.4x extender (280-560mm, f/5.6) makes it ideal for sports and wildlife photography
One fluorite and four UD lens elements provide excellent correction of chromatic aberration throughout the entire zoom range, delivering high-quality images with high resolution and contrast
Inner focusing, ring USM, a high-speed CPU and optimized AF algorithms for fast and accurate autofocusing
Optical Image Stabilizer provides up to four shutter speed stops of correction.
Three image stabilization modes (standard, panning, and during exposure only) provide excellent results for a wide range of shooting situations
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This item: Canon EF 200-400mm f/4L IS USM Extender 1.4x$10.00