The Sigma APO 70-200mm f/2.8 EX DG OS HSM full-frame telezoom lens is now available in Japan. Constructed of 22 elements in 17 groups, the lens has a filter thread size of 77mm and has an iris diaphragm with 9 rounded blades for a smooth bokeh. Two FLD (“F” Low Dispersion) glass elements, which have the performance equal to fluorite glass, and three SLD (Special Low Dispersion) glass elements provide excellent correction of colour aberration, the company says. Supplied with a tripod collar and a petal type lens hood, the Sigma APO 70-200mm f/2.8 EX DG OS HSM weighs in at 1,430 grams and is available in Canon, Nikon, Sigma, Sony and Pentax fit. Film camera users should be aware that the Optical Stabiliser (OS) does not work when the lens is mounted to film SLRs except for the and Canon EOS-1V.

Website: Sigma

Sigma Press Release

SIGMA APO 70-200mm F2.8 EX DG OS HSM

The Sigma Corporation is pleased to announce the new Sigma APO 70-200 F2.8 EX DG OS HSM.

This large aperture telephoto zoom lens incorporates Sigma’s original Optical Stabilizer function. The lens covers focal lengths from 70mm to 200mm and has a large maximum aperture of F2.8 throughout the entire zoom range. Two FLD (“F” Low Dispersion) glass elements, which have the performance equal to fluorite glass, and three SLD (Special Low Dispersion) glass elements provide excellent correction of color aberration. High image quality is assured throughout the entire zoom range and an optimum optical power layout provides superior optical quality in all shooting ranges from close-up to infinity. The OS (Optical Stabilizer) function offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible. For Sony and Pentax mount, the built-in OS function of this lens can be used even if the camera body is equipped with an image sensor shift anti-shake system. As compensation for camera shake is visible in the view finder, the photographer can easily check for accurate focus and ensure there is no subject movement. Super Multi-Layer Coating reduces flare and ghost. This lens incorporates HSM (Hyper Sonic Motor), ensuring a quiet and high speed AF as well as full-time manual focus capability. The lens has a minimum focusing distance of 140cm(55.1”) throughout the entire zoom range and a maximum magnification ratio of 1:8. The rounded 9 blade diaphragm creates an attractive blur to the out of focus images. This lens is equipped with a Petal-type hood. For digital cameras with an APS-C size image sensor, a dedicated hood adapter, which expands the length of the lens hood, is supplied.

Specification (for Sigma mount)

* Lens Construction 22 Elements in 17 Groups * Maximum Magnification 1:8 * Angle of View 34.3-12.3 degrees * Filter Size Diameter 77mm * Number of blades 9pcs (Rounded diaphragm) * Lens Hood Petal-type hood (LH850-02) supplied * Minimum Aperture F22 * Dimensions f86.4mm×197.6mm / 3.4in. × 7.8in. * Minimum Focusing Distance 140cm / 55.1in. * Weight 1430g / 50.4oz

* The Pentax mount Tele Converter cannot be used with this particular lens. * Nikon and Pentax mounts do not have an aperture ring. Some functions may not work depending on the camera model. * For Nikon and Canon mounts, Optical Stabilizer (OS) function will not work with film SLR cameras except Nikon F6 and Canon EOS-1V. *For Pentax and Sony mounts, it is not possible to use the AF and the built-in OS function of this lens when attaching it to film SLR cameras as well as Pentax *ist series and K100D. *When using the OS function of a lens with a camera which incorporates a stabilizer unit, please turn the camera’s stabilizer unit off. * When using the APS-C Hood Adapter HA850-01 with digital cameras with a full frame image sensor, vignetting will occur. Please remove the hood adapter if you are using full frame cameras.

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