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|The Canon EF 70-300mm f/4-5.6 IS USM telephoto zoom lens has been developed to meet the high-performance standards that todays photographers demand. The telephoto effect can make the picture look compressed or have excellent background blur. At the 300mm focal length you can fill the frame with a postcard from 4.9 away. This lens is ideal for sports portraiture animals etc. Improved Image Stabilizer Technology provides up to three stops of shake correction and the Mode 2 option stabilizes images while panning with a moving subject. The Canon EF 70-300mm IS USM zoom lens has fast autofocus and is lightweight. Key Features IS Image Stabilizer Image Stabilizer allows photographers to use shutter speeds up to 3-stops slower with no perceptible increase in image blur. For stabilized panning IS Mode 2 only corrects for unwanted vertical shake by switching off IS in the horizontal direction. IS is ideal for low light conditions fast paced scenes and for shooting from moving vehicles. IS switches off automatically when the camera is mounted on a tripod. Micro USM Motor The Micro USM motor uses ultra-sonic frequency vibrations to drive rapid auto-focus with near-silent operation. Good holding torque ensures there is no overshoot. A high speed CPU and optimized AF algorithm contribute to AF speed literally faster than the human eye. UD Lens Element A UD (ultra-low dispersion) glass lens element corrects chromatic aberration to achieve high resolution and contrast throughout the zoom range without color fringing on subject outlines. Only lead free glass is used in the lens construction. Super Spectra Coatings Optimized Super Spectra lens coatings and lens element shaping suppress flare and ghosting more prone to occur with digital cameras due to reflection off the image sensor. Coatings also help achieve true color balance and sharp high contrast images. Pleasing Background Blur Circular aperture (8 blades) provides pleasing background blur. Secure Transport The zoom ring can be locked at the 70mm position making this lens easy and more secure to transport.|