Sigma CD AF 120-300mm F2.8 DG OS HSM Canon EOS Lens

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This latest version of the Sigma APO 120-300mm F2.8 EX DG OS HSM is pleased to announce the inclusion of Optical Stablization(OS) which is critical to equipment sporting this focal range allowing for hand-held tele-photography and the use of shutter speeds approximately 4 stops slower than would otherwise be possible. One SLD and two FLD glass elements provides maximum correction of chromatic aberrations. The super multi-layer coating reduces flare and ghosting, and the lens design incorporates an inner focusing and inner zooming system to ensure sharp images throughout the entire zoom range. Improved optical performance provides excellent correction of sagittal coma flare and ensures ultra-high resolution, comparable to a fixed focal length lens. The HSM (Hyper Sonic Motor ensures quiet and high speed AF, while allowing full-time manual focus override. A truly unique product which is a rarity in the photo industry, this lens is the only lens of its kind on the market; a professional zoom lens that also features a fast aperture. Most professionals own the standard 300mm 2.8, but they also have to carry a shorter zoom lens for those times when the subjects move closer. That means fumbling around switching lenses or carrying a second camera body. The amazing Sigma zoom lens let you instantly determine the picture composition you want without having to change your vantage point. Imagine photographing courtside at a college basketball game and having the versatility to zoom in on a player's face or hand and then instantly zoom back to capture the entire player making his shot. You can do it with the Sigma APO 120-300mm F2.8 EX DG OS HSM. The aperture remains constant at F2.8 throughout the entire zoom range. The addition of the optional APO tele converter produces an ultra telephoto zoom lens with AF

Designed for use with full frame digital SLR cameras. May also be used with smaller APS-c size sensors
Offers Sigma’s OS System (Optical Stabilization) allowing handheld photography even in low-light situation
HSM (Hyper-Sonic Motor) ensures a quiet & high-speed auto focus
FLD glass elements with performance equal to fluorite glass for compensate for color aberration

Lens Construction 23 Elements in 18 Groups
Angle of View 20.4-8.2 degrees
Number of Diaphragm Blades 9
Mininum Aperture f22
Minimum Focusing Distance 150-250cm cm / 59.1-98.4in in
Filter Size (mm) 105mm
Maximum Magnifications 1:8.1 (at 200mm focal length)
(Diameter x Length)
114.4mm x 289.2mm mm/4.5in. x 11.4in. in
Weight 2950g / 104oz.
Corresponding Mounts
Sigma  OS 
Nikon  OS 
Canon  OS 
OS - Optical Stabilizer Function
HSM - Hyper-Sonic Motor
APO - Apochromatic 
EX - EX Lens
DG - DG for Digital

* The appearance, specifications, and the like of the product are subject to change for improvement without notice.

Chart Guide


MTF Chart
MTF Chart 2


Lens Construction

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