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Canon To Ship New Zoom Lens

EF 70-200mm f/2.8L IS USM offers image stabilization By Dave Nagel
Canon has introduced the EF 70-200mm f/2.8L IS USM Image Stabilizing lens for the company's line of EOS autofocus SLRs. The optical system of the new lens is based on the current EF 70-200mm f/2.8L USM and retains the same features but adds a new image stabilizer function. The older lens will remain in Canon's lineup.

The new EF 70-200mm f/2.8L IS USM uses four UD (Ultra-Low Dispersion) glass elements designed to correct chromatic aberrations. Powered by Canon's exclusive Ultrasonic (USM) motor for autofocusing, the new lens also offers full-time manual focus. The lens maintains a consistent aperture ratio of f/2.8 throughout the zoom range.

The lens employs a newly designed image stabilizer mechanism that uses an improved method of holding the barrel of the supplementary optical system, providing smoother movement than in previous IS systems, according to Canon. This results in image stabilization up to approximately three stops compared to the two-stop stabilization effect of previous Canon IS lenses. The IS function can be used to eliminate the image-blurring effects of mirror bounce even when the lens is used on a tripod or monopod.

Other improvements include a reduced minimum focusing distance of 1.4m/4.6', a newly developed aperture diaphragm that remains virtually circular from f/2.8 to f/5.6 for enhanced image quality and a revised AF drive circuit and autofocusing algorithm.

The new EF70-200mm f/2.8L IS USM lens will be supplied with a lens pouch and dedicated lens hood. It will be available in September for $3,000. For more information, visit

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Related Keywords:zoom, telephoto, lens, canon

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