Sigmas proprietary OS (Optical Stabilizer) system offers the use of shutter speeds Approx. 4 stops slower than would otherwise be possible, enabling hand held tele-photography. Six SLD glass elements compensate for chromatic aberrations & provide high image quality throughout the zoom range. The super multi-layer coating reduces flare & ghosting & ensures sharp & high contrast images even at the maximum apertures. The lens design adopts an inner focusing & inner zooming system to provide convenient handling & the HSM (Hyper Sonic Motor) ensures quiet & high speed autofocus while allowing full-time manual focus override. This lens has a minimum focusing distance of 80 cm (31.5") & a maximum magnification ratio of 1:6.3. The rounded 9 blade diaphragm creates an attractive blur to the out of focus areas of the image. ...

Sigmas proprietary OS (Optical Stabilizer) system offers the use of shutter speeds Approx. 4 stops slower than would otherwise be possible, enabling hand held tele-photography. Six SLD glass elements compensate for chromatic aberrations & provide high image quality throughout the zoom range. The Super Multi-Layer Coating reduces flare & ghosting & ensures sharp & high contrast images even at the maximum apertures. The lens design adopts an inner focusing & inner zooming system to provide convenient handling & the HSM (Hyper Sonic Motor) ensures quiet & high speed autofocus while allowing full-time manual focus override. This lens has a minimum focusing distance of 80cm (31.5") & a maximum magnification ratio of 1:6.3. The rounded 9 blade diaphragm creates an attractive blur to the out of focus areas of the image. ...

Sigmas proprietary OS (Optical Stabilizer) system offers the use of shutter speeds Approx. 4 stops slower than would otherwise be possible, enabling hand held tele-photography. Six SLD glass elements compensate for chromatic aberrations & provide high image quality throughout the zoom range. The Super Multi-Layer Coating reduces flare & ghosting & ensures sharp & high contrast images even at the maximum apertures. The lens design adopts an inner focusing & inner zooming system to provide convenient handling & the HSM (Hyper Sonic Motor) ensures quiet & high speed autofocus while allowing full-time manual focus override. This lens has a minimum focusing distance of 80cm (31.5") & a maximum magnification ratio of 1:6.3. The rounded 9 blade diaphragm creates an attractive blur to the out of focus areas of the image. ...

This ultra telephoto zoom lens covers a standard range of focal lengths from 50mm to 500mm ultra telephoto range. This lens is equipped with Sigma's unique OS (Optical Stabilizer) function. This system enables hand held photography for many types of subjects such as motor sports, air planes, macro & wildlife. Four SLD (Special Low Dispersion) glass elements provide excellent correction of color aberration throughout the entire zoom range. Incorporation of HSM (Hyper Sonic Motor) ensures quiet & high speed AF, while allowing full-time manual focus override. ...

This ultra telephoto zoom lens covers a standard range of focal lengths from 50mm to 500mm ultra telephoto range. This lens is equipped with Sigma's unique OS (Optical Stabilizer) function. This system enables hand held photography for many types of subjects such as motor sports, air planes, macro & wildlife. Four SLD (Special Low Dispersion) glass elements provide excellent correction of color aberration throughout the entire zoom range. Incorporation of HSM (Hyper Sonic Motor) ensures quiet & high speed AF, while allowing full-time manual focus override. ...

This is the first ultra wide zoom lens with a minimum focal length of 8mm, designed especially for APS-C size image sensors. The wide-angle of view & exaggerated perspective enables the photographer to emphasize the subject. Four FLD glass elements & three aspherical lenses provide high image quality throughout the zoom range. The incorporation of HSM ensures quiet & high speed AF as well as full-time manual focuses capability. ...

Sigma's 17-70 mm F2.8-4 DC macro OS HSM is the practical zoom! A large-aperture, standard zoom lens for digital cameras with an open-aperture value of F2.8 (at 17 mm) & covers the most frequently used focal lengths. With an aperture fast enough to be used in many light situations, its close focusing for use with very small object & its outstanding optical performance make this an ideal all-around lens for landscapes, portraits, still life studies, group shots & just about any everyday photo situation. The OS, Sigma's anti shake feature, offers the use of shutter speeds Approx. 4 stops slower than would otherwise be possible. HSM ensures quiet & high speed AF capability. With a faster aperture than the typical camera "kit lens" it is an excellent choice for the photographer who has higher expectations for their photo equipment. ...

Sigma's 17-70 mm F2.8-4 DC macro OS HSM is the practical zoom! A large-aperture, standard zoom lens for digital cameras with an open-aperture value of F2.8 (at 17 mm) & covers the most frequently used focal lengths. With an aperture fast enough to be used in many light situations, its close focusing for use with very small object & its outstanding optical performance make this an ideal all-around lens for landscapes, portraits, still life studies, group shots & just about any everyday photo situation. The OS, Sigma's anti shake feature, offers the use of shutter speeds Approx. 4 stops slower than would otherwise be possible. HSM ensures quiet & high speed AF capability. With a faster aperture than the typical camera "kit lens" it is an excellent choice for the photographer who has higher expectations for their photo equipment. ...

This compact high zoom ratio lens is designed exclusively for digital SLR cameras & incorporates Sigmas original OS (Optical Stabilizer) function. This system uses two sensors inside the lens to detect vertical & horizontal movement of the camera & works by moving an optical image stabilizing lens group to effectively compensate for camera shake. It offers the use of shutter speeds Approx. 4 stops slower. It is the ideal lens for several type of photography such as wide-angle, telephoto & close-up. SLD (Special Low Dispersion) glass, a molded glass aspherical lens & two hybrid aspherical lenses provide excellent correction for all types of aberrations. The super multi-layer coating reduces flare & ghosting. High image quality is assured throughout the entire zoom range. This lens has a minimum focusing distance of 35cm at all focal lengths, & has maximum magnification of 1:3.8, making it ideal for close-up photography. This lens incorporates HSM (Hyper Sonic Motor), which ensures a quiet & high-speed autofocus. ...

This compact high zoom ratio lens is designed exclusively for digital SLR cameras & incorporates Sigmas original OS (Optical Stabilizer) function. This system uses two sensors inside the lens to detect vertical & horizontal movement of the camera & works by moving an optical image stabilizing lens group to effectively compensate for camera shake. It offers the use of shutter speeds Approx. 4 stops slower. It is the ideal lens for several type of photography such as wide-angle, telephoto & close-up. SLD (Special Low Dispersion) glass, a molded glass aspherical lens & two hybrid aspherical lenses provide excellent correction for all types of aberrations. The super multi-layer coating reduces flare & ghosting. High image quality is assured throughout the entire zoom range. This lens has a minimum focusing distance of 35cm (13.8") at all focal lengths, & has maximum magnification of 1:3.8, making it ideal for close-up photography. This lens incorporates HSM (Hyper Sonic Motor), which ensures a quiet & high-speed autofocus. ...