2008 Photokina Tradeshow
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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 APO Tele Converter 2x EX DG for Sony. Courtesy of Sigma, with modifications by Michael R. Tomkins. PRESS RELEASE: New dedicated tele converter for Sony mount telephoto lenses that support HSM


APO TELE CONVERTER 1.4x EX DG for Sony
APO TELE CONVERTER 2x EX DG for Sony

  • Dedicated tele converter for telephoto lenses incorporating HSM

  • Exclusive design maintains the master lens’ high level performance

  • Super Multi Layer Coating reduces flare and ghosting

The Sigma Corporation is pleased to announce the new APO TELE CONVERTER 1.4x EX DG and APO TELE CONVERTER 2x EX DG for Sony mount. The new tele converters are capable of maintaining the HSM function of such telephoto lenses as Sigma’s APO 70-200mm F2.8 II EX DG MACRO HSM and APO 50-150mm F2.8 II EX DC HSM whilst increasing the focal length by a factor of 1.4x or 2x. Of course, the HSM (Hyper Sonic Motor) AF compatibility depends on the capability of the Sony SLR camera to support this function and on the maximum F number of the attached lens. The Super Multi Layer Coating reduces flare and ghosting and the exclusive design maintains the master lens’ high level performance while extending its focal length. Compact and lightweight, these tele converters are a convenient way of increasing the focal length of HSM telephoto lenses.
* If non-HSM lenses are used, focusing can be achieved in manual mode only.
* AF function will not be supported when Sigma’s earlier non HSM Sony fitting tele converters are used.

APO TELE CONVERTER 1.4x EX DG for Sony
Case supplied
Lens Construction 5 Elements 3 Groups
Focal Length 1.4 times of master lens
Aperture Range F2.8 - 32
Magnification 1.4 times of master lens
Dimension 68.5mm x 19.5mm / 2.7in x 0.8in
Weight 165g / 5.8oz
.

APO TELE CONVERTER 2x EX DG for Sony
Case supplied
Lens Construction 6 Elements 5 Groups
Focal Length 2 times of master lens
Aperture Range F2.8 - 32
Magnification 2 times of master lens
Dimension 68.5mm x 52mm / 2.7in x 2.0in
Weight 225g / 7.9oz
.


(First posted on Tuesday, September 23, 2008 at 02:01 EDT)

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