PMA 2006: The Sigma APO MACRO 150mm F2.8 EX DG HSM lens for Four Thirds is announced at PMA today.

Sigma UK Press Release

The Sigma Corporation is pleased to announce the new 150mm 2.8 EX DG for the Four Thirds fitting. This large aperture telephoto macro lens enables you to shoot up to 1:1 life size close-ups. Its large F2.8 aperture makes it an ideal lens for digital SLR as well as film SLR cameras. The new lens power layout provides the ultimate correction against lateral chromatic aberration to which digital cameras are prone. Two Special Low Dispersion (SLD) glass elements control various color aberrations and assure high image quality.

- Designed to give a superior performance with Digital SLR Cameras as well as 35mm Film Cameras.
- Super compact and lightweight, large aperture telephoto lens with life-size macro capability.
- Hyper Sonic Motor (HSM) with full time manual focus override.
- Floating Focusing System produces excellent optical performance.
- Detachable Tripod Socket.

A floating focusing system moves two different lens groups in the optical system to different positions. This system compensates for astigmatic aberration and spherical aberration.

THE SPECIFICATIONS
Focal Length (4/3 Format) 3000mm
Minimum Aperture F22
Lens Construction 16 Elements in 12 Groups
Angle of View (4/3 Format) 8.2°
Number of Diaphragm Blades 9pcs
Minimum Focusing Distance 38cm (15in.)
Maximum Magnification 1:1
Filter Size 72mm
Lens Hood Petal-type hood
Dimensions Diameter 79.6mm (3.1in.)X Length 137mm (5.4in.)
Weight 895gr/31.6ounces
SRP                 £499.99

The appearance and specifications of the product are subject to change for improvement without notice.