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Fulfill your photography dream by enhancing the quality of your camera's functional capabilities with the powerful Canon EF L lens. This Canon EF 20-35mm lens is a wide angle zoom lens. Compatible with a variety of Canon models, this lens features excellent design attributes, such as its 20mm to 35mm focal length that will minimize picture blurring even in sensitive photography environments.It is built of 12 groups containing 15 elements. There is a ground aspheric element in front and floating elements optimize the image clarity. All zoom and focus functions are internal, with no external movement during operation. In the barrel, the front and rear groups pump in and out. The range of focal lengths on this lens is covered with a scale of four notches. These are marked 35mm, 28mm, 24mm, and 20mm. The extension tubes provide close-ups of up to 0.66x at 20mm and up to 0.92x at 35mm. It offers a close focus of 1.6 feet from the image plane and a maximum reproduction ratio of 1:11.11.To ensure photo clarity and sharpness, the f/2 lens has a filter diameter of 72mm and f/2.8L to f/32 aperture. The Canon EF 20-35mm lens has a USM, which stands for Ultra Sonic Motor. It's a small motor that Canon builds into the camera body, allowing it to autofocus quicker than standard model cameras. The diaphragm on these Canon lenses has six blades and stops down to f/22. The size of the lens is 3.1 inches in diameter by 3.5 inches in length. This does not change when the unit is focused or zoomed. It weighs slightly over 1 pound and has a stationary metal 72mm filter thread.Exploit the additional performance enhancements of this f/2 lens and use them to tune up your photography skills. These enhancements include an amazing optical construction that features groups of aspherical elements to reflect a floating design, which in turn ensures enhanced close focus performance. It features a focusing scale, with the ring turning from the nearest focal distance to infinity in approximately 130 degrees. The metal zoom ring on these Canon 20-35mm lenses operates with the flick of a finger.In terms of image quality, sharpness from this Canon f/2 20-35mm zoom lens is top-notch. Images are free of flare and ghosts. This EF mount lens will enable you to diversify your photography endeavors because it features multiple aspect views. These offer you the chance to take a variety of orientation frames shots. The diagonal angle of view available with these lenses is 94 degrees to 63 degrees. It has a vertical angle of 62 degrees to 38 degrees, and the horizontal angle is 84 degrees to 54 degrees.The Canon EF f/2 lenses work ideally on the Canon 7D, Canon 5D Mark II, and Canon EOS 620 cameras. It is compatible with every Canon EOS, DSLR, and autofocus camera. Used as full-frame lenses, these Canon zoom lenses also work on every Canon SLR camera. Accessories that come with the unit include a plastic bayonet, a 72mm non-ultrasonic lens cap, and a hard cylindrical case.