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The following is an unedited press release, shown as received from the company represented. We've elected to present selected releases without editorial comment, as a way to provide our readers more information without further overtaxing our limited editorial resources. To avoid any possible confusion or conflict of interest, the Imaging Resource will always clearly distinguish between company-provided press releases and our own editorial views and content.

PRESS RELEASE: Large aperture zoom lens with improved optical performance


APO 70-200mm F2.8 II EX DG MACRO HSM

  • Improved optical performance with a minimum focusing distance of 100cm/39.4in and maximum magnification of 1:3.5
  • Two SLD and three ELD glass elements provide excellent correction for all types of aberrations
  • Super multi-layer coating reduces flare and ghosting
  • HSM ensures quiet, high speed autofocus with full time manual focusing
  • APO Tele Converter is available

The Sigma Corporation is pleased to announce the launch of the new APO 70-200mm F2.8 II EX DG MACRO HSM.

This large aperture zoom lens has improved optical performance and retains close-up ability with a minimum focusing distance of 100cm/39.4in and maximum magnification ration of 1:3.5. This lens is suitable for taking all type of subjects such as portraits, landscape, and close-up pictures. Two SLD (Special Low Dispersion) and three ELD (Extraordinary Low Dispersion) glass elements provide excellent correction for all types of aberrations. High image quality is assured throughout the entire zoom range. The super multi-layer coating reduces flare and ghosting. This lens incorporates HSM (Hyper Sonic Motor), which ensures a quiet and high-speed AF as well as full-time manual focusing capability. The lens design incorporates an inner focusing and inner zooming systems. The overall length of the lens does not change during focusing and zooming, ensuring convenient handling. A removable tripod collar (TS-21) is included as a standard component.

When this lens is used with the optional 1.4x EX DG APO or 2x EX DG APO Tele Converters, it becomes a 98-280mm F4 AF telephoto zoom lens or a 140-400mm F5.6 AF telephoto zoom lens respectively.

APO 70-200mm F2.8 II EX DG MACRO HSM
Case, Petal-type Hood (LH850-01), Tripod Collar (TS-21) supplied
Lens construction 15 Groups, 18 elements
Angle of view 34.3° - 12.3°
Number of blades 9 pcs
Minimum Aperture F22
Minimum Focusing Distance 100 cm / 39.4 in.
Maximum Magnification 1 : 3.5
Filter Size ø 77 mm
Lens Hood Petal-type Hood
Dimensions ø 86.5 mm x 184.4 mm / 3.4in. x 7.3in.
Weight 1370g / 48.3oz
.


(First posted on Monday, December 3, 2007 at 12:56 EST)

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