Sigma CA50-200OS 50-200mm F4-5.6 DC OS HSM Lens - Canon

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. 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.

Optical Stabilization: Sigma's own OS System

Inner Focusing System: Eliminates front lens rotation; suitable for use w/circular polarizing filters

Compact, Telephoto Zoom Lens

High Image Quality: SLD glass elements with inner focusing

High Magnification: 1:4.5 magnification, exclusively designed for Digital SLRs

Includes: Bayonet Type Hood

Specifications

Lens Construction: 14 Elements in 10 Groups

Angle of View: 27.9 - 7.1 degrees

Number of Diaphragm Blades: 8 Blades

Minimum Aperture: F22

Minimum Focusing Distance: 110cm/43.3 in.

Maximum Magnification: 1:4.5

Filter Size: Diameter 55mm

Dimensions: Diameter 74mm X Length 101.9mm; 2.9 in. X 4.0 in.

Weight: 420g / 14.82 oz