This telephoto zoom lens incorporates Sigmas original OS (Optical Stabilizer) function. Three SLD (Special Low Dispersion) glass elements provide excellent correction for chromatic aberration. This lens is equipped with the rear focus system that minimizes fluctuation of aberration caused by focusing. It provides optimum image quality throughout the entire zoom range. The super multi-layer coating reduces flare & ghosting. High image quality is assured throughout the entire zoom range. ...

This compact high-performance telephoto zoom lens incorporates Sigmas own Optical Stabilizer function. The lens incorporates SLD (Special Low Dispersion) glass in the front lens groups & 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 & high-speed auto focus. The OS (Optical Stabilizer) function effectively eliminates the effects of camera shake so subjects can be easily & 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. For Sony & Pentax mounts the built-in OS System allows the photographer to see the stabilized image in the viewfinder & can be used as an alternative with cameras having built-in image stabilization. The super multi-layer coating reduces flare & ghosting & provides high contrast images throughout the entire zoom range. This lens has a minimum focusing distance of 43.3 inches throughout the entire zoom range & 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. ...

This ultra telephoto zoom lens covers a standard range of focal lengths from 50mm to 500mm ultra telephoto range. This lens is equipped with Sigmas 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 Sigmas 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. ...

Sigmas huge choice of lenses enables photo enthusiasts to maximize their creativity. Each & every Sigma lens offers optimum optical performance & smooth handling characteristics through a combination of experience & advanced technology. Sigmas design & precision engineering helps photographers to maximize their true creativity by fulfilling the full potential of their cameras. ...

This standard zoom lens is designed exclusively for digital SLR cameras & incorporates Sigmas original OS function. This lens covers several angles of view, from wide to telephoto as well as offering a large aperture of F2.8 at the 17mm focal length. It provides a bright image through the viewfinder & enables photographers to easily check focusing & composition. The lens has a minimum focusing distance of 22cm & a maximum magnification ratio of 1:2.7 making it ideal for close-up photography as well as landscape & macro photography. ELD (Extraordinary Low Dispersion) glass & aspherical lenses provide excellent correction for all types of aberrations & high image quality is assured throughout the entire zoom range. Super multi-layer coating reduces flare & ghosting. The incorporation of HSM (Hyper Sonic Motor) ensures quiet & high speed AF. ...

This 11.1x high zoom ratio lens incorporates Sigmas original OS function & offers a broad shooting range from wide angle to telephoto. The latest optical technology enables easy handheld photography with a compact construction & length of just 87.7 mm, making it ideal for various scenes such as landscape, sport & general photography. The compact construction guarantees excellent mobility making ideal for travel photography. FLD ("F" Low Dispersion) glass, which has performance equal to fluorite, SLD (Special Low Dispersion) glass elements, & aspherical lens elements provide high image quality throughout the entire zoom range. Sigmas HSM (Hyper Sonic Motor) ensures fast & quiet auto-focusing. ...

This 11.1x high zoom ratio lens incorporates Sigmas original OS function & offers a broad shooting range from wide angle to telephoto. The latest optical technology enables easy handheld photography with a compact construction & length of just 87.7 mm, making it ideal for various scenes such as landscape, sport & general photography. The compact construction guarantees excellent mobility making ideal for travel photography. FLD ("F" Low Dispersion) glass, which has performance equal to fluorite, SLD (Special Low Dispersion) glass elements, & aspherical lens elements provide high image quality throughout the entire zoom range. Sigmas HSM (Hyper Sonic Motor) ensures fast & quiet auto-focusing. ...

The addition of the 18-250 mm F3.5-6.3 DC Macro OS HSM speaks to Sigmas versatile product lineup with this multipurpose zoom lens that offers Optical Stabilization (OS) & covers wide angle to telephoto to macro photography. It differs from Sigmas current 18-250 mm F3.5-6.3 DC OS HSM lens with its even more compact size, its macro capability with a maximum magnification ratio of 1:2.9 & the use of Thermally Stable Composite (TSC) material currently used only by Sigma. ...

The addition of the 18-250 mm F3.5-6.3 DC Macro OS HSM speaks to Sigmas versatile product lineup with this multipurpose zoom lens that offers Optical Stabilization (OS) & covers wide angle to telephoto to macro photography. It differs from Sigmas current 18-250 mm F3.5-6.3 DC OS HSM lens with its even more compact size, its macro capability with a maximum magnification ratio of 1:2.9 & the use of Thermally Stable Composite (TSC) material currently used only by Sigma. ...