Sigma 50-500mm F4-6.3 EX DG HSM Lens for Nikon

Sigma 50-500mm f/4-6.3 EX DG APO HSM Telephoto Zoom Lens for Nikon SLR Cameras

Features High Magnification Zoom Lens with a 10x zoom ratio. Optimized for digital SLR cameras. This high zoom ratio lens is optimized for digital SLR cameras and capable of covering a wide range of focal lengths from 50mm standard to 500mm ultra telephoto. Reduction of Flare and Ghosting The advanced optical design is optimized for digital SLR cameras. In addition, the new super coating on each glass surface produces superb color rendition, while reducing flare and ghosting.SLD glass for superior optical performanceThis lens uses four pieces of SLD (the special low dispersion) glass for excellent correction of color aberration throughout the entire zoom range.HSM (Hyper Sonic Motor). The HSM models (the HSM is only available for AF Canon, Nikon and Sigma Mounts) provide quiet high-speed AF function, as well as full time manual focus capability.APO Tele-Converter EX (optional)By adding an APO teleconverter (sold separately), you can use this lens as a 140-700 e7.3-8.8 MF ultra-telephoto zoom lens with a 1.4X EX teleconverter, or as a 200-1000mm F10.4-12.6 MF ultra-telephoto zoom lens with a 2X teleconverter. (Teleconverters can be used in 100mm - 500mm focal length range) Easy Operation and Handling This lens also features a Zoom Lock device to eliminate Zoom Creep when the lens is tilted down. When the lens is set to the 50mm focal length, it is remarkably compact and provides easy handling. The tripod mount is composed of magnesium, to minimize total weight and also it is easy to grip and carry the lens due to ergonomic design of the tripod mount.Non-rotating front lens elements, due to rear focus mechanism make possible the use of a custom bayonet Petal-type Hood, which prevents extraneous light from degrading the image quality. This mechanism also allows the use of circular polarizing filters, since the front barrel does not rotate during focusing or zooming. Specifications Lens Construction  20 Elements in 16 GroupsAngle of ...

Sigma 50-500mm f/4.5-6.3 APO DG OS HSM SLD Ultra Telephoto Zoom Lens for Nikon Digital DSLR Camera

Sigma's APO 50-500mm F4.5-6.3 DG OS HSM is an advanced optical design of this 10x power high-performance zoom lens that covers the standard-to-super- telephoto range, now with the added advantage of Sigma's own Optical Stabilization which offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible. Sigma is the only one to offer OS for Sony and Pentax mount where the image is stabilized in the viewfinder if chosen. For many photographers, having an all-in-one lens is an absolute dream. Especially for nature photographers, the idea of a lens suitable for landscape photography at the short end of the zoom range, while still having enough reach for wildlife is a great option. Add to that, the ability to close focus on small objects in the field such as flowers and it's the perfect backpackers' lens. Four SLD (Special Low Dispersion) glass elements provide optimum color correction & sharpness throughout the entire zoom range and super Multi-Layer lens coating reduces flare and ghosting and assures high image quality throughout the entire zoom range. With no need to change lenses, there is less chance of dirt or moisture entering the camera and fouling the imaging sensor.

Sigma Photo 50-500mm f/4-6.3 DG APO OS HSM for Nikon mount ($1659.99 before $150.00 savings)

for Nikon mount 35mm equivalent focal length on Nikon APS-C cameras: 75-750mm,optical stabilization allows in-focus shots with slower shutter speeds,one lens covers a wide range of focal lengths