Sigma releases 70-300mm F4-5.6 DG OS
Sep 4, 2009 at 04:00 GMT
Sigma has announced an image-stabilized telephoto zoom in the shape of the 70-300mm F4-5.6 DG OS. Suitable for use on both APS-C and full frame cameras, this lens incorporates Sigma's Optical Stabilization technology allowing hand-held shooting at shutter speeds up to 4 stops slower than usual, along with a circular diaphragm for attractive rendition of out-of-focus backgrounds. The minimum focus distance is 1.5m giving a maximum magnification of 0.26x; unlike Sigma's non-stabilized 70-300mm zooms there's no extended macro focusing option. The lens will available for users of Sigma, Nikon, Canon, Pentax and Sony SLRs at a SRP of £399.
70-300mm F4-5.6 DG OS
September 4, 2009: The Sigma Corporation is pleased to announce the new 70-300mm F4-5.6 DG OS. This telephoto zoom lens incorporates Sigma’s original OS (Optical Stabiliser) function and is housed in a compact construction.
The OS function offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible. It makes telephoto shooting easy for many types of photography such as sport and nature. 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 anti-shake function. 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.
The SLD (Special Low Dispersion) glass element provides excellent correction for all type of aberrations. The Super Multi-Layer Coating reduces flare and ghosting and provides high contrast images throughout the focal range.
The lens has an overall length of 126.5mm (5.0”), maximum diameter of 76.5mm (3.0”) and weight of just 610g. Its compact construction makes it convenient for travel and hand held telephoto photography. This lens’ rounded 9 blade diaphragm creates an attractive blur to the out of focus areas of the photograph.
This lens has a minimum focusing distance of 150cm (59.1”) throughout the entire
zoom range and a maximum magnification ratio of 1:3.9, making it ideal for close-up photography.
|Diagonal Angle of view||34.3º - 8.2º|
|Maximum aperture||F4 - F5.6|
16 elements/11 groups
|Number of diaphragm blades||9|
|Minimum focus||150 cm|
|Maximum Magnification Ratio||
|Image stabilization||• Yes|
|Filter thread||• 62mm|
|Supplied accessories|| Front and rear caps
Bayonet-type Lens Hood
|Weight||610g (21.5 oz)|
|Dimensions||76.5mm diameter x 126.5mm length
(3.0 x 5.0 inches)
|Lens Mount||Sigma AF, Nikon AF, Canon AF, Pentax AF, Sony AF|