This telephoto zoom lens incorporates Sigma's original OS (Optical Stabiliser) function making hand-held telephoto photography a reality. SLD (Special Low Dispersion) glass elements and the inner focusing system provide high definition and the Super Multi-Layer Coating reduces flare and ghosting and provides high contrast images. This lens incorporates HSM (Hyper Sonic Motor), ensuring a quiet and high speed AF.

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.

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.

This lens is equipped with Sigma's own unique OS function. This system offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible. 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 viewfinder, 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.

• 50-200mm f/4-5.6 DC OS HSM
• Lens Hood
• Front and Rear Caps
• Instruction Manual
• 1 Year Warranty Card

• 14 Elements in 10 Groups

• 27.9 - 7.1 degrees

• 8 Blades

• F22

• 110cm

• 1:4.5

• 55mm

• Diameter 74.4mm X Length 202mm

• 420g