Canon EF 70-200mm f/4 L is USM Lens for Canon Digital SLR Cameras - Reconditioned
Canon EF 70-200mm f/4L IS USM lens offers the highest possible optical quality with no change in aperture over the full focal range of the lens. This allows photographers to set exposure at the widest aperture and zoom all the way through to 200mm without having to decrease shutter speed. Developed for use with a Canon SLR camera, this autofocus telephoto zoom lens offers optimized use with the Canon EOS series digital cameras.Optical Performance

• Constant f/4 aperture across full 70-200mm focal range
• Set exposure at widest aperture and zoom without adjusting shutter speed
• Highest optical quality for professional results

Image Stabilization (IS)

• Dramatically reduces blur caused by camera shake
• Gyro sensors detect vibrations and trigger corrective lens movement
• Mode 1: Corrects horizontal and vertical movement for stationary subjects
• Mode 2: Panning mode disables vertical correction for following moving subjects

Autofocus System

• Ring-type USM with ultra-sonic frequency vibrations
• Unrivalled autofocus speed with near-silent operation
• Powerful CPU and improved AF algorithm for enhanced performance

Flash Compatibility

• Distance metering information for E-TTL II flash system compatibility
• Works seamlessly with Canon EX Speedlite flash units
• Improved flash exposure metering through distance data transmission
• Compatible with EOS-1D Mark II, EOS-1Ds Mark II, EOS 5D, EOS 400D, and other late-model cameras

What's Included

• Lens hood
• Soft protective pouch

Of particular note, Canon has introduced an image stabilizer (IS) that adjusts to meet the demands of professional photography. IS reduces dramatically the image blur caused by camera shake. Gyro sensors detect unwanted vibrations, triggering the corresponding movement of a correcting lens group perpendicular to the optical axis. This alters the light path, returning the image to its correct position on the sensor or film plane. For shooting immobile subjects, Mode 1 corrects for movement in the image along both the horizontal and vertical axes. For shooting while panning horizontally to follow a moving subject, Mode 2 turns off vertical correction and prevents the effect of dragging the subject back through the frame. The lens' Ring-type USM employs ultra-sonic frequency vibrations to drive auto focus with unrivalled speed and near-silent operation. A powerful CPU and improved AF algorithm contribute to speed performance. The EF 70-200mm f/4L IS USM includes distance metering information, providing compatibility with the E-TTL II flash system of late model cameras such as the EOS-1D Mark II, EOS-1Ds Mark II, EOS 5D and EOS 400D. When used in conjunction with Canon's range of EX Speedlite flash units, the lens passes distance information to the flash algorithm for markedly improved flash exposure metering. Includes Lens hood and soft pouch