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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.

Sigma's 10-30mm F3.5 EX DC HSM lens. Photo provided by Sigma Corp. PRESS RELEASE: SIGMA announces 10-20mm F3.5 EX DC HSM


The Sigma Corporation is pleased to announce the new SIGMA 10-20mm F3.5 EX DC HSM. This super-wide angle lens has a maximum aperture of F3.5 throughout the entire zoon range. Its wide angle of view from 102.4 degrees produces striking images with exaggerated perspective. The maximum aperture of F3.5 is ideal for indoor shooting and it enables photographers to emphasize the subject. Two ELD (Extraordinary Low Dispersion) glass elements and a SLD (Special Low Dispersion) glass element provide excellent correction of color aberration. Four aspherical lenses provide correction for distortion and allow compact and lightweight construction. The Super Multi-Layer coating reduces flare and ghosting. High image quality is assured throughout the entire zoom range. The incorporation of HSM (Hyper Sonic Motor) ensures a quiet and high-speed AF as well as full-time manual focusing capability. This lens has a minimum focusing distance of 24cm (9.4 inches) throughout the entire zoom range and a maximum magnification ratio of 1:6.6. The lens design incorporates an inner focusing system. It eliminates front lens rotation, making the lens particularly suitable for using the Petal-type hood. The Petal-type hood blocks extraneous light and reduce internal reflection.

SIGMA 10-20mm F3.5 EX DC HSM
Sigma's 10-30mm F3.5 EX DC HSM lens. Photo provided by Sigma Corp. Click for a bigger picture!
Case, Petal-type Hood (LH873-01) supplied
Specification(For Sigma mount)
Lens Construction 13 Elements 10 Groups
Maximum Magnification 1:6.6
Angle of View 102.4°-63.8°
Filter Size Φ 82mm
Number of blades 7pcs
Lens Hood Petal-type hood
Minimum Aperture F22
Minimum Focusing Distance 24cm / 9.4in
Dimensions Φ 87.3mm ×88.2 mm / 3.4” x 3.5”
Weight TBD
Corresponding AF Mounts
SIGMA, CANON, NIKON(D),SONY(D), PENTAX
.
  • Vignetting will occur if the lens is used with 35mm SLR cameras or digital cameras with image sensors larger than APS-C size.

  • For Pentax mount, if the camera body does not support HSM, auto focus will not be available.

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


(First posted on Monday, March 2, 2009 at 20:00 EST)

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