วันศุกร์ที่ 26 สิงหาคม พ.ศ. 2554

Canon EF 70-200mm f/2.8L IS USM Telephoto Zoom Lens for Canon SLR Cameras

Canon EF 70-200mm f/2.8L IS USM Telephoto Zoom Lens for Canon SLR Cameras


Feature

  • EF mount; telephoto zoom lens
  • Ultra-low Dispersion glass; image stabilizer; inner focusing; full-time manual focus; circular aperture
  • 70-200mm focal length
  • f/2.8 constant maximum aperture
  • Micro UltraSonic Motor (USM) Includes case and lens hood

Description

The EF 70-200mm F2.8 L IS USM was introduced way back in August 2001, supplementing (but not replacing) the non-stabilized 70-200mm F2.8 L USM in Canon's highly regarded telephoto lineup. This is a lens which can truly be described as a professional workhorse, with robust build (including dust and moisture resistance), wide F2.8 maximum aperture, fast and silent ultrasonic autofocus motor, and optical image stabilization for hand-holding at slow shutter speeds. The optical design is somewhere on the far side of complex; it features 23 elements in 18 groups, with 4 UD elements to provide compensation for chromatic aberration. According to Canon, this gives a 'high-resolution, high-contrast optical capability', as demanded from a lens which needs to perform all day, every day in the hands of professional photographers across a wide range of subjects and conditions.

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*** Product Information and Prices Stored: Aug 26, 2011 13:06:20

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