Canon EF 100-300mm f/4.5-5.6 USM Telephoto Zoom Lens for Canon SLR Cameras

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Canon EF 100-300mm f/4.5-5.6 USM Telephoto Zoom Features

• EF mount; telephoto zoom lens

• Inner focusing; full-time manual focus

• 100-300mm focal length

• f/4.5-5.6 maximum aperture

• Ring-type UltraSonic Motor (USM)

About Canon EF 100-300mm F/4.5-5.6 USM Telephoto Zoom

Product Description Highly practical and portable telephoto zoom lens. The five zoom groups make the length only 4.8 in. (121.5mm). With rear focusing, the lens does not change length or rotate during focusing. Any filter effects therefore remain intact. It also makes autofocusing quick and quiet. Amazon.com The Canon EF 100-300mm lens completes a fusion of state-of-the-art electronics, mechanical precision, and optical excellence. The fully electronic EF lens mount is unique among 35mm SLR cameras, operating silently and reliably due to the complete elimination of mechanical couplings. It has a custom- designed autofocus motor and microprocessor, and employs ultrasonic motor technology, aspherical lens elements, flourite crystal and ultralow-dispersion glass. The EF 100-300mm is designed for use with all EOS cameras, allows auto and manual focus modes, rear focusing system, and has an affordable price.