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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 telephoto zoom lens designed exclusively for digital SLR cameras and reveals its strength in close-up photography


APO 50-150mm F2.8 II EX DC HSM

  • Compact, lightweight, large aperture telephoto zoom lens
  • SLD(Special Low Dispersion)glass elements and the super multi layer lens coating assured high image throughout the entire zoom range.
  • The new lens design ensures high image quality at the minimum focusing distance of 100cm/39.4in.
  • Equipped with HSM (Hyper Sonic Motor) with full-time manual focus override.
  • Compatible with Sigma 1.4x EX DG and 2x EX DG APO Tele-Converters

The Sigma Corporation is pleased to announce the launch of the new APO 50-150mm F2.8 II EX DC HSM lens.

This large aperture telephoto zoom lens is designed exclusively for digital SLR cameras with APS-C size sensors and its compact, lightweight body provides freedom of movement and versatility. The minimum focusing distance of 100cm/39.4in. and the high-resolution power layout have improved the strength of the lens in close-up photography. This lens offers a large aperture of F2.8 and its large depth of field offers greater freedom of creative expression. It has a maximum aperture of F2.8. Four SLD glass elements are used for maximum correction of chromatic aberrations. The super multi-layer lens coating reduce flare and ghosting and ensure sharp images throughout the entire zoom range. The lens design incorporates an inner focusing and inner zooming system. As the overall length of the lens does not change during focusing and zooming, convenient handling is ensured. The HSM (Hyper Sonic Motor) system allows quiet and high-speed auto focusing with full time manual focus override by just rotating the focusing ring. The addition of the optional 1.4x EX DG APO or 2x EX DG APO Tele Converters produce a 70-210mm F4 AF tele-zoom lens and a 100-300mm F5.6 AF ultra-telephoto zoom lens respectively.

APO 50-150mm F2.8 II EX DC HSM
Case, Bayonet type Hood (LH850-01) supplied
Lens construction 18 elements, 14 Groups
Angle of view 27.9° - 9.5°
Number of blades 9 pcs
Minimum Aperture F22
Minimum Focusing Distance 100cm / 39.4in.
Maximum Magnification 1 : 5.3
Filter Size ø 67 mm
Lens Hood Bayonet Type
Dimensions ø76.5mm x 140.2mm / 3in. x 5.5in.
Weight 780g / 27.5oz
.


(First posted on Monday, December 3, 2007 at 13:01 EST)

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