Sigma stabilizes 50-500mm ultra-telezoom
PMA 2010: Last but not least of the lenses, we come to Sigma's upgrade for its popular 50-500mm ultra-telephoto zoom which now incorporates Optical Stabilisation - a hugely welcome addition to such a long lens. Again Sigma claims the OS offers up to four stops benefit, and works with Sony and Pentax SLRs as well as Canon, Sigma and Nikon models, with the stabilized viewfinder image aiding in focusing and composition. The all-new optical design uses 22 elements in 16 groups, including four SLD glass elements, but the filter size has grown to a whopping 95mm.
SIGMA APO 50-500mm F4.5-6.3 DG OS HSM
February 21, 2010: The Sigma Corporation is pleased to announce the new Sigma APO 50-500mm F4.5-6.3 DG OS HSM.
This is a 10x high zoom ratio ultra telephoto zoom lens incorporating Sigma’s original Optical Stabilizer function. This lens covers a wide range of focal lengths from 50mm to 500mm ultra telephoto. 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.
Four SLD (Special Low Dispersion) glass elements provide excellent correction of color aberration. The Super Multi-Layer Coating reduces flare and ghost and ensures high image quality throughout the entire zoom range. This lens has a maximum magnification ratio of 1:3.1 (at the focal length of 200mm) making it ideal for close-up photography.
This lens incorporates HSM (Hyper Sonic Motor), ensuring quiet and high speed AF as well as full-time manual focus capability. The addition of the optional 1.4x EX DG or 2x EX DG APO Tele Converters produce a 70-700mm F6.3-8 or a 100-1000mm F9-12.6 MF zoom lens respectively. This lens is equipped with a Petal-type hood to block out extraneous light. The filter size of this lens is φ95mm and the lens is supplied with a step down ring enabling digital cameras with an APS-C size image sensor to use an φ86mm filter.
|Lens construction|| 16 groups 22 elements
4 SLD glass elements
|Angle of view (APS-C crop)||46.8°-5.0°|
|Closest focus distance||
|Maximum reproduction ratio||1:3.1 (f=200mm)|
|Aperture blades||9 (rounded)|
|Filter attachment size||95 mm|
|AF motor||HSM motor|
|Dimensions||104.4mm x 219mm (4.1 in x 8.6 in)|
|Supplied accessories|| Case
Petal-type Hood (LH1030-01)
Step down ring
Tripod socket TS-31
|Optional accessories|| Sigma DG UV 95mm
Sigma DG Circular Polarizer 95mm
APO Teleconverter 1.4x EX DG
APO Teleconverter 2x EX DG
|Mounts||Sigma, Sony, Nikon, Pentax, Canon|
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