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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.

The SIGMA 8-16mm F4.5-5.6 DC HSM lens. Photo provided by Sigma Corp. PRESS RELEASE: Sigma Corporation of America's new 8-16mm F4.5-5.6 DC HSM lens now available

Rectilinear lens contains new "F" Low Dispersion glass, is widest angle zoom on the market

Ronkonkoma, NY, April 23, 2010 - Sigma Corporation of America, a leading researcher, developer, manufacturer and service provider of some of the world's most impressive lines of lenses, cameras and flashes, has announced that its new, 8-16mm F4.5-5.6 DC HSM lens, which incorporates the company's new "F" Low Dispersion (FLD) lens glass, is now available.

This rectilinear lens, which was first introduced at PMA 2010 in February, is the widest angle zoom lens on the market today. The 8-16mm F4.5-5.6 DC HSM is designed specifically for APS-C size image sensors and has an equivalent angle of view of a 12-24mm lens when used on digital cameras of that sensor size. The lens is currently available in Canon mount at all authorized Sigma dealers for the MSRP of $1,100, and it will be available in Sigma, Nikon, Sony and Pentax mounts in the coming weeks.

"As the manufacturer of the first ultra wide angle lens, there are a number of reasons why we are incredibly excited about the arrival of this lens. The fact that it produces a wide-angle view of nearly 121.2 degrees, depending on what camera you are shooting with, is definitely at the top of that list," said Mark Amir-Hamzeh, general manager of Sigma Corporation of America. "Another feature that we are extremely proud of is this lens' use of our company's new FLD glass, which boasts performance equal to fluorite glass, but without the added weight."

FLD glass is the highest level, low dispersion glass available with extremely high light transmission. With a performance equal to fluorite glass, this optical glass has a low refractive index and low dispersion compared to current optical glass. It also benefits from high anomalous dispersion. These characteristics offer excellent correction for residual chromatic aberration (secondary spectrum), which cannot be corrected by ordinary optical glass and ensures high-definition and high-contrast images.

In addition to having four elements of the FLD glass, the 8-16mm F4.5-5.6 DC HSM also offers one hybrid aspherical lens and two glass mold elements for excellent correction of distortion and astigmatism. It incorporates an inner focusing system to produce high-definition images throughout the entire zoom range, and has Super Multi-Layer Coating to reduce flare and ghosting with superior peripheral brightness to produce high-contrast images. The lens' Hyper Sonic Motor (HSM) provides quiet and high-speed auto focus, as well as full-time manual focus capability.

The 8-16mm F4.5-5.6 DC HSM has a minimum focusing distance of 9.4 inches throughout the entire zoom range to create exaggerated perspectives and help photographers emphasize the subject. Its compact construction measures up to an overall length of 4.2 inches and a maximum diameter of 2.9 inches.

To locate an authorized Sigma dealer nearest to you, visit www.sigmaphoto.com/where/where.asp. For information about Sigma Corporation of America, visit www.sigmaphoto.com.

The SIGMA 8-16mm F4.5-5.6 DC HSM lens. Photo provided by Sigma Corp. Click for a bigger picture!

The SIGMA 8-16mm F4.5-5.6 DC HSM lens.
Photo provided by Sigma Corp.

About Sigma Corporation
For nearly 50 years, Sigma Corporation's expertise and innovation has driven the company's core philosophy of "knowledge, plus experience, plus imagination," with an emphasis on producing high-quality, high-performance photographic technology at moderate prices. This family-owned organization is the largest, independent SLR lens manufacturer in the world, producing more than 50 lenses that are compatible with most manufacturers, including Sigma, Canon, Sony, Nikon, Olympus and Pentax. Sigma Corporation also produces digital SLR cameras and high-definition digital compact cameras. The company is headquartered in Japan, with offices strategically located throughout Europe, Asia and North America. For information, please visit www.sigmaphoto.com.

Specifications for the 8-16mm F4.5-5.6 DC HSM
Lens Construction 15 elements, 11 groups
Angle of view 114.5 - 75.4
Number of diaphragm blades 7 blades
Minimum aperture F22
Minimum focusing distance 9.4 inches/24cm
Maximum magnifications 1:7.8
Dimensions Diameter 3.0 inches x 4.2 inches/75mm x 105.7mm
Weight 19.6 ounces/555g
Corresponding AF mounts Sigma, Canon, Nikon, Sony, Pentax
NOTES: Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras.

AF will not function with Pentax ist* series and K100D DSLR cameras that do not support HSM.
Filters cannot be attached to this lens.
The appearance, specifications, and the like of the product may be subject to change for improvement.

(First posted on Friday, April 23, 2010 at 17:17 EDT)

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