Canon 100-400mm f/4.5-5.6L EF IS USM
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Canon 100-400mm f/4.5-5.6L EF IS USM | |||||||||||||||||||||||||||||||||||||||||
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. Advanced telephoto lens for Canon systems with EF mounts and full frame sensors. The focal length range is 100-400mm, and the design includes an image stabilizer, which makes handheld shooting easier. Autofocus drive — ultrasonic. The aperture has 5 blades, its minimum value is 32 (with aperture range f/4.5 – f/5.6.
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The Canon 100-400mm f/4.5-5.6 L IS USM is an excellent professional telephoto zoom lens with a size and weight that still allows quick handheld shooting. Sufficiently high aperture and a built-in image stabilizer allow you to shoot with relatively slow shutter speeds in low light conditions and without additional illumination. The USM ultrasonic AF drive and focus itself by moving the internal lens group make this process very fast, smooth and silent. The "floating" lens system ensures that spherical aberration and coma are corrected when focus distance is changed, resulting in excellent image sharpness over the entire zoom range. At the same time, the minimum focus distance is only 1.8m.
The optical scheme of the lens is one of the most complex in the entire line of Canon autofocus optics and contains 17 lenses. Of these, two are specifically designed to maximize the correction of chromatic aberration - the scourge of telephoto lenses. One large-diameter lens made of an artificial fluorite crystal is located in the first group of lenses, the second - made of optical glass with extra low dispersion - in the third group.
The Canon 100-400mm f/4.5-5.6 L IS USM lens is unquestionably suitable for the most complex and demanding professional shooting, including those scenes for which the correct reproduction of close colour shades is crucial (for example, in advertising, portrait photography, filming flowers and plants). The FT-M mechanism allows you to quickly switch from autofocus to manual focus.
