Sigma 18-50mm F2.8 EX DC MACRO Lens

EX series large aperture zoom lens designed specially for use with digital SLR cameras with a minimum focusing distance of 20cm. The Sigma Corporation is pleased to announce the launch of the new 18-50mm F2.8 EX DC MACRO lens. This lens has a large aperture of F2.8 throughout the entire zoom range, a minimum focusing distance of 20cm (7.9») and a maximum magnification of 1:3, making it ideal for close-up photography. Specially designed to suit the characteristics of digital SLR cameras this lens provides a high level of optical performance.Its design incorporates both glass-mold and hybrid aspherical lens technology which offers superior peripheral brightness, extremely high image quality as well as a compact and lightweight construction. Special Low Dispersion (SLD) and Extraordinary Low Dispersion (ELD) glass elements provide excellent correction of color aberrations. The super multi-layer lens coating reduces flare and ghosting, a common problem with digital cameras. High image quality is assured th

The Sigma 18-50mm f2.8-4.5 DC OS HSM - Nikon fit is a large aperture standard zoom lens designed exlcusively for digital SLR cameras with the smaller APS-C sized sensor. It incorporates the Optical Stabilisation function as well as an Hyper Sonic Motor, and offers a large aperture of f2.8 at 18mm wide angle. This large aperture combined with the OS anti-shake function is ideal for indoor photography as well as low lighting conditions. Two SLD (Special Low Dispersion) glass elements and three aspherical lenses provide excellent correction for all types of aberrations. The Super Multi-Layer Coating reduces flare and ghosting.