For the serious photographer looking for a high quality wide-angle lens, look no further than the Sigma 10-20 mm f/4-5.6 EX DC HSM Wide-Angle Lens for Nikon DSLR Cameras. Ultra wide-angle zoom Whether you prefer shooting indoor or landscape images, the ultra wide-angle 10-20 mm zoom lens will give great results to compliment your photography. The multi-layer lens coating greatly reduces flare & ghosting, allowing optimum colour balance throughout the entire zoom range & adding a new depth to your pictures. Close focus For professionals & amateurs alike, the Sigma 10-20 mm Wide Angle Lenslets anyone with a Nikon DSLR get up close to their subjects with a minimum focus point of 24 cm throughout the 1:6.7 zoom range. Hyper Sonic Autofocus The Hyper Sonic Motor works silently & quickly when set to auto focus so you dont miss your shot. The action is smooth & responsive & works quickly to let you capture crystal clear images every time. Switch easily from auto focusto manual & enjoy the ability to shoot what you want & how you want in any situation. Internal Focus Using Internal Focus technology to eliminate front-end rotation, this Sigma lens greatly reduces potential fluctuation of aberration to give you much more control & reliability when shooting. The smart lens does a lot of the hard work to give you outstandingly sharp images. SLD Glass Optical Construction Three SLD (Special Low Dispersion) glass elements combine to give you incredibly high resolution & superb image sharpness to capture the best images possible with this user-friendly & highly useable lens. Suitable for all keen photographers, the Sigma 10-20 mm f/4-5.6 EX DC HSM Wide-Angle Lens for Nikon is an easy-to-use & highly versatile lens that makes high-speed ultra wide-angle photography a reality.