Friday, May 29, 2009

The Sigma Corporation is pleased to announce the new 50-200mm F4-5.6 DC OS HSM. Compact, High Performance Telephoto Zoom Lens.

This compact high-performance telephoto zoom lens incorporates Sigma’s own Optical Stabilizer function. The lens incorporates SLD (Special Low Dispersion) glass in the front lens groups and is equipped with an inner focusing system to provide high image quality throughout the entire zoom range. The incorporation of HSM (Hyper-Sonic Motor) ensures quiet and high-speed auto focus. The OS (Optical Stabilizer) function effectively eliminates the effects of camera shake so subjects can be easily and clearly seen in the viewfinder as well as in the image. It allows the use of shutter speeds up to 4 stops slower than normal for steady, handheld photography. For Sony and Pentax mounts the built-in OS System allows the photographer to see the stabilized image in the viewfinder and can be used as an alternative with cameras having built-in image stabilization. The Super Multi-Layer Coating reduces flare and ghosting and provides high contrast images throughout the entire zoom range. This lens has a minimum focusing distance of 43.3inches (110cm) throughout the entire zoom range and a maximum magnification ratio of 1:4.5. An inner focusing system eliminates front lens rotation, making it suitable for use with circular polarizing filters.

Lens Construction

14 Elements in 10 Groups

Angle of View 27.9 - 7.1 degrees
Number of Diaphragm Blades 8 Blades
Minimum Aperture F22
Minimum Focusing Distance 110cm/43.3 in.
Maximum Magnification 1:4.5
Filter Size Diameter 55mm
Dimensions Diameter 74mm X Length 101.9mm
2.9 in. X 4.0 in.
Weight TBD
* The appearance, specifications, and the like of the product are subject to change for improvement without notice.
* Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras.
* For Pentax mount, if the camera body does not support HSM, auto focus will not be available.

M.S.R.P. $500.00 USD

Features & Benefits:

* Optical Stabilization: Sigma’s own OS System.
* Sony & Pentax: Original Anti-Shake function for camera body and viewfinder
* Inner Focusing System: Eliminates front lens rotation; suitable for use w/circular polarizing filters
* Compact, Telephoto Zoom Lens
* High Image Quality: SLD glass elements with inner focusing
* High Magnification: 1:4.5 magnification, exclusively designed for digital SLRs
* Includes: Bayonet Type Hood
* Mounts: for Sigma, Nikon, Canon, Sony and Pentax

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