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.
Product Code:1NikSig50-200 DC OS HSM
Excellent optical performance SLD (Special Low Dispersion) glass elements and the inner focusing system provide excellent correction for all type of aberrations. High image quality is assured throughout the entire zoom range.
Telephoto zoom lens with compact construction The lens has a compact construction with an overall length of 102.2mm (4.0") and a maximum diameter of 74.4mm (2.9"). It is ideal for many situations such as landscape and general photography.
SIGMA's own unique OS (Optical Stabilizer) technology This lens is equipped with Sigma's own unique OS (Optical Stabilizer) function. This system offers the use of shutter speeds approximately 4 stops slower. It also compensates for camera shake when shooting moving subjects such as motor sports. The OS function can be also used for Sony and Pentax mount. 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.
* It is not possible to use the built-in OS function of this lens, when using with Pentax ist* series and K100D DSLR cameras.
Quiet and fast AF The incorporation of HSM and an inner focusing system provide fast and quiet auto-focusing
* AF will not function if the Pentax camera bodies do not support HSM.
High contrast image quality The Super Multi-Layer Coating reduces flare and ghosting. High contrast image quality is assured throughout the entire zoom range.
Ideal for use with polarizing filters The lens design incorporates an inner focusing system which eliminates front lens rotation. This makes the lens particularly suitable for using a circular polarizing filter.
Close focusing capability This lens has a minimum focusing distance of 110cm (43.3") throughout the entire zoom range, and has maximum magnification of 1:4.5, making it ideal for close-up photography.
* Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras.
14 Elements in 10 Groups
Angle of View
27.9 - 7.1 degrees
Number of Diaphragm Blades
Minimum Focusing Distance
Diameter 74.4mm x Length 102.2mm
* Specifications subject to change by the manufacturer without notice