Sigma have today announced a new version of the 50-150mm f2.8 lens for DX and other similar formats. Here are the official details:

PRESS RELEASE

February 2011

50-150mm f/2.8 EX DC APO OS HSM

Compact, large aperture telephoto zoom lens with Optical Stabilisation

Image © Sigma Corporation

The Sigma Corporation is pleased to announce the new Sigma 50-150mm F2.8 EX DC APO OS HSM, designed especially for digital SLRs with an APS-C size image sensor.

Sigma’s proprietary OS (Optical Stabiliser) system enables hand held tele-photography by allowing the use of shutter speeds approximately 4 stops slower than would otherwise be possible.

Six SLD glass elements compensate for chromatic aberrations and provide high image quality throughout the zoom range. The Super Multi-Layer Coating reduces flare and ghosting and ensures sharp and high contrast images even at the maximum apertures.

The lens design adopts an inner focusing and inner zooming system to provide convenient handling and the HSM (Hyper Sonic Motor) ensures quiet and high speed autofocus while allowing full-time manual focus override.

This lens has a minimum focusing distance of 80cm (31.5”) and a maximum magnification ratio of 1:6.3. The rounded 9 blade diaphragm creates an attractive blur to the out of focus areas of the image. The addition of Sigma’s TELE CONVERTER 1.4x EX DG APO or 2x EX DG APO produces a 70-210 F4 AF telephoto zoom lens or 100-300 F5.6 AF telephoto zoom respectively.

THE SPECIFICATIONS

Minimum Aperture F22 Minimum Focusing Distance 80cm

Lens Construction 21 Elements in 15 Groups Maximum Magnification 1:6.3

Angle of View 27.9-9.5° Filter Size 77mm

No. of Diaphragm Blades 9 pcs Lens Hood Bayonet-type

Weight TBA

SRP TBA

Dimensions Diameter 86.4mm x Length 197.6mm

In brief:

Compact, lightweight, large aperture telephoto zoom lens

Sigma’s proprietary Optical Stabilisation system

Rounded 9 blade aperture

HSM for fast and quiet autofocus

Compatible with Sigma EX DG APO Tele-Converters

For further information please contact:

Sigma Imaging (UK) Ltd, 13 Little Mundells, Welwyn Garden City Hertfordshire, AL7 1EW

Tel 01707 329999 E-Mail sales@sigma-imaging-uk.com

Website www.sigma-imaging-uk.com

End. (08/02/11).