Sigma 18-50mM F/2.8 EX Nikon - Description:
Large aperture zoom the Sigma 18-50mm f2.8 DC lens designed specially for use with digital SLR Nikon AF digital cameras and includes a minimum focusing distance of 20cm.

The 18-50mm f2.8 DC lens is specially designed to suit the characteristics of digital SLR Canon cameras and provides a high level of optical performance. The 18-50mm f2.8 DC Lens has a large aperture of F2.8 throughout the entire zoom range 18mm to 50mm, the 18-50mm f2.8 DC lens offers superior peripheral brightness as well as a compact and lightweight . A maximum magnification of 1:3, makes the sigma 18-50mm f2.8 DC lens ideal for close up and macro photography.

A Minimum focusing distance of 20cm and maximum magnification of the 18-50mm f2.8 DC Lens1:3
This large aperture standard zoom 18-50mm f2.8 DC lens, with close up ability, is ideal for all types of photography including portraits, landscapes and snap shots only used with Digital SLRs.

Large aperture of F2.8 throughout the entire zoom 18mm to 50mm range in the 18-50mm f2.8 DC:
The constant large aperture f2.8 enables easy confirmation of focusing through a bright viewfinder. The sigma 18-50mm f2.8 DC lens is perfectly suited for low light conditions indoors or at dusk.

Excellent optical design in the Sigma 18-50mm f2.8 DC:
Special Low Dispersion (SLD) and Extraordinary Low Dispersion (ELD) glass elements in the 18-50mm f2.8 DC provide excellent correction of colour aberrations. This 18-50mm f2.8 DC zoom lens produces an exceptional level of optical performance.

The Sigma 18-50mm f2.8 DC is a Compact and lightweight lens:
Its design incorporates both glass-mould and hybrid aspherical lens technology which offers a compact and lightweight construction.

Reduced Ghosting and Flare in the Sigma 18-50mm f2.8 DC Lens:
The 18-50mm f2.8 DC lens has excellent correction for vignetting, a common problem with large aperture lenses. Its new design ensures superior peripheral brightness. The super multi-layer 18-50mm f2.8 DC Sigma lens coating reduces flare and ghosting. High image quality is assured throughout the entire zoom range of Sigma 18-50mm f2.8 DC lens.

Inner Focus System in the Sigma 18-50mm f2.8 DC Lens:
The 18-50mm f2.8 DC lens is equipped with an inner focusing system. The non-rotating front lens element in the 18-50mm f2.8 DC makes the lens suitable for using its petal-type lens hood and circular polarising filters.

Sigma 18-50mm f2.8 DC is a compact-Lightweight zoom lens
Compact-Lightweight 18-50mm f2.8 DC zoom lens has a maximum diameter of 62mm (2.4in.), overall length of 67.5mm (2.6in.) and weight of only 250gr (8.7 ounces) and filter size of 58mm. Compact dimensions of 18-50mm f2.8 DC lens offers superb handling and mobility. The use of aspherical lenses in the 18-50mm f2.8 DC lens provides correction for various aberrations throughout the entire zoom range 18mm to 50mm and produce high level of optical performance.

The Sigma 18-50mm f2.8 DC exclusively designed to suit the characteristics of digital SLR cameras.
We took digital characteristics into consideration when designing the 18-50mm f2.8 DC lens power layout and created the most suitable lens that makes high quality images a reality throughout the entire zoom range. We used the most appropriate coating in the 18-50mm f2.8 DC lens for digital products to cut down flare and ghost caused by digital SLR cameras and to produce the best color balance. The 18-50mm f2.8 DC lens can be used with the supplied lens hood to block out extraneous light.

The Sigma 18-50mm f2.8 DC Lens Specifications:

Sigma 18-50mm f2.8 DC Lens fitting: The 18-50mm f2.8 DC lens fits all Nikon AF Digital SLRs Only.
Lens Construction : 8 Elements in 8 Groups
Angle of View : 69.3 - 27.9 degrees (SD format)
Number of Diaphragm Blades : 7 Blades
Minimum Aperture : F22
Minimum Focusing Distance : 25cm/9.8 in.
Maximum Magnification : 1:3.5
Filter Size Diameter : 58mm
Dimensions Diameter : 67.5mm X Length 62mm 2.7in. X 2.4 in.
Weight of Sigma Lens 18-50mm without packages : 250g /8.8 oz.

The Sigma 18-50mm f2.8 DC lens Accessories:

Sigma rear and front caps,
Sigma lens hood,
Sigma 18-50mm f2.8 DC lens instruction manual,