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Sigma announces 70-200mm lens
By Michael R. Tomkins, The Imaging Resource
(Sunday, February 26, 2006 - 11:00 EST)

Sigma Corp. has today announced a new 70-200mm lens destined for the Canon, Nikon and Sigma lens mounts.

The Sigma APO 70-200mm F2.8 EX DG MACRO HSM lens has eighteen elements in fifteen groups, and a nine bladed diaphragm, with an angle of view ranging from 34.3° - 12.3°. It focuses down to 100 centimeters, accepts a 77mm filter thread, and weighs 1,380 grams. More details can be found in the specifications sheet and press release below, both courtesy of Sigma.

Sigma APO 70-200mm F2.8 EX DG MACRO HSM
Focal Length 70-200mm
Minimum Aperture F22
Lens Construction 18 Elements in 15 Groups
Angle of View 34.3°-12.3°
Number of Diaphragm Blades 9pcs
Minimum Focusing Distance 100cm (39.4”)
Maximum Magnification 1:3.5
Filter Size 77mm
Lens Hood Petal Hood
Dimensions Diameter 86.6mm (3.4in”) x Length 184.4mm (7.3”)
Weight 1,380g / 48.7oz
Compatibility SIGMA AF, NIKON AF, CANON AF
 

Original Source Press Release:

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

Large aperture zoom lens designed specially for digital SLR cameras with close-up capability.

  • Minimum focusing distance of 100cm, maximum magnification of 1:3.5.
  • The super multi layer lens coating and lens design reduce flare and ghost.
  • ELD and SLD lenses for correction of aberrations.
  • HSM ensures a quiet and high-speed AF.

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

This large aperture telephoto zoom lens has a minimum focusing distance of 100cm (39.4”) throughout the entire zoom range. It is very convenient for close-up photography. This lens uses two ELD (Extraordinary Low Dispersion) glasses and two SLD(Special Low Dispersion) glasses for utmost correction against chromatic aberrations. This lens’ super multi layer lens coating reduce flare and ghost, which is a common problem with digital cameras.

This lens incorporates HSM (Hyper Sonic Motor), which ensures a quiet and high-speed AF. 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 long tripod collar (TS-41) is included as a standard component.

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

* The appearance and specifications are subject to change without notice.

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