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Sigma 120-400mm f/4.5-5.6 DG APO OS HSM Autofocus Lens for Canon DSLR Camera
The Sigma 120-400mm F4.5-5.6 DG APO OS HSM is a telephoto zoom lens designed for Full Frame sensors, but may also be used with smaller APS-C size sensors with a corresponding effective increase in focal length to about 180 to 600mm with most cameras. It’s large telephoto zoom range plus its compact size of a mere 8 inches and weight of only 3.6 pounds, make it a great all purpose travel lens. A Hyper Sonic Motor (HSM) ensure quiet, high speed, and accurate autofocusing working with an Optical Stabilizer (OS) which compensates for camera shake when shooting hand-held. Three SLD (Special Low Dispersion) glass elements provide optimum color correction and sharpness throughout the entire zoom range. The 120-400 F4.5-5.6 is compatible with Sigma APO teleconverters.
This Sigma 120-400mm f/4.5-5.6 DG APO OS HSM Autofocus Lens for Canon DSLR Camera is an ultra telephoto zoom lens ideal for nature/outdoor or sports photography. This translates into an equivalent range of 204-680mm when used with a Sigma digital SLR camera.
The use of HSM (Hyper Sonic Motor), APO apochromatic design, three elements of SLD (Special Low Dispersion) glass, and multicoated optics all enable this lens to provide a high level of performance throughout its entire zoom range, as well as versatility. A rear focus system insures quick, convenient manual focus and a non-rotating front barrel.
The improved DG lens design corrects for various aberrations. This lens is specially coated to get the best color balance, while cutting down on ghosting caused by reflections from the digital image sensor. The lens provides the utmost correction against lateral chromatic aberration, which is a serious problem for digital SLR cameras.
By adding the optional Sigma APO teleconverter, you can use this lens as a 168-560mm f/6.3-8 manual focus ultra-telephoto zoom lens with a 1.4X EX teleconverter, or as a 240-800mm f/9-11 manual focus ultra-telephoto zoom lens with a 2X teleconverter.The HSM (Hyper Sonic Motor) system ensures quiet and high-speed auto focusing with full time manual focus override.Three Special Low Dispersion (SLD) elements provide excellent correction for chromatic aberration.Super Multi Layer (SML) coating reduces ghost and flare.The lens design incorporates an inner focusing system, which prevents the front of the lens from rotating, thereby making it particularly suitable for use with circular polarizing filters and petal shaped lens hoods.
Sigma 120-400mm f/4.5-5.6 DG APO OS HSM Autofocus Lens for Canon SLR Camera
|Filter Thread||77 mm|
|Dimensions (DxL)||Approx. 3.8 x 8.0" (9.65 x 20.32 cm)|
|Weight||3.86 lb (1.75 kg)|