The Sigma 70-200mm F/2.8-6.3 APO DG OS HSM is designed for use with full frame digital SLR cameras and also cameras using smaller APS-c size sensors, but in the latter case you need to increase the focal length to about 100 to 300 mm.

• Possesses a focal length range between 70 mm and 200 mm
• The Optical Stabilization system of this telephoto zoom lens allows you to click photos on a handheld camera even in low-light conditions
• The Hyper-Sonic Motor (HSM) feature of the Sigma 70-200mm F/2.8-6.3 APO DG OS HSM provides for quiet and faster auto focus
• FLD glass elements ensure optimum color correction and sharpness throughout the entire zoom range
• You can focus as close as 39 inches and get a high close-up with a maximum magnification of 1:3.5
• Quite useful for journalists and wedding photographers
• This Telephoto Zoom Lens weighs 2.5 pounds and measures 7.8 x 3.4 x 3.4 inches
  

Lens Construction : 22 Elements in 17 Groups

Angle of View : 34.3-12.3

Number of Diaphragm Blades : 9

Mininum Aperture : f/22

Minimum Focusing Distance : 140 cm / 55.1 in

Filter Size (mm) : 77

Maximum Magnifications : 1:8

Dimensions (Diameter x Length) : 86.4x197.6 mm/3.4x7.8 in

Extended Dimensions : 152.5 mm / 6 in

Weight :1430g / 50.4oz.

Corresponding Mounts : Sigma OS HSM EX DG, Nikon OS HSM EX DG, Canon OS HSM EX DG, Sony/Minolta OS HSM EX DG, Pentax OS HSM EX DG