Canon EF 70-300mm f/4-5.6 IS USM EF70-300mm F4-5.6 IS USM Instruction Manual - Page 2

Thank you for purchasing a Canon product. Dedicated to EOS cameras, the Canon EF70300mm f/4-5.6 IS USM lens is a highperformance telephoto zoom lens equipped with an Image Stabilizer. ¡"IS" stands for Image Stabilizer. ¡"USM" stands for Ultrasonic Motor. Conventions used in this instruction Warning to prevent lens or camera malfunction or damage. Features 1. The Image Stabilizer gives the equivalent effect of a shutter speed three stops faster*. The lens also has a second image stabilizer mode that is optimized for following shots of moving subjects. 2. UD lens elements for excellent imaging performance. 3. The zoom ring can be fixed to keep the lens at the shortest point. 4. Ultrasonic motor (USM) for quick and quiet autofocusing. 5. A truly round aperture hole results in a nicer background blur. * Based on [1/focal length] second. Generally, it requires a shutter speed [1/focal length] second or faster to prevent camera shake. Supplementary notes on using the lens and taking pictures. ENG-1