Sigma 300-800mm f/5.6 EX DG HSM APO IF Ultra Telephoto Zoom Lens for Nikon SLR Cameras

From 300mm telephoto to 800mm ultra-telephoto this new lens provides a constant fast maximum aperture and is optimized for digital SLR cameras Digital Video Recording - Record over 48 hours of video in AVI format and in different video modes 5MP Digital Camera - Take quality JPG photos in different camera modes Voice Recorder - The built-in mic allows you to record quick notes and lectures, playback through the external speaker or headphones Arcsoft MediaImpressions 2 & Video Downloader - Easily edit, upload, and share your media; Download videos right off the web. Equalizer - Yes Sound Output Mode - Stereo Photo Output Mode - JPEG Video Recording Output Mode - AVI Supported Digital Photo Standards - BMP, JPEG Supported Digital Audio Standards - WAV, WMA, MP3 Supported Digital Video Standards - AVI, MP4, FLV and more using conversion CD Battery - Rechargeable - lithium polymer Headphones - binaural Connector Type - 1 x headphones/TV-Out, 1 x Hi-Speed USB System Requirements - OS Required - Windows 98/2000/XP/Vista, Apple Mac OS Microphone Type - Microphone - built-in Radio Type - Radio tuner - digital - FM Dimensions - Height - 4.125 in Width - 2.5 in Depth - 0.5 in

The Sigma APO 300-800mm f5.6 EX DG HSM Lens for Nikon Digital SLR Cameras provides a constant fast maximum aperture throughout the entire zoom range and is optimized for digital SLR cameras. By continuously varying the angle of view from 8.2 degrees to 3.1 degrees, the lens takes a lot of the footwork out of picture composition.

The multi-layer lens coating and lens design reduce flare and ghosting, which is a common problem with digital cameras, and it also creates an optimum color balance. Two Extra Low Dispersion (ELD) glass elements in the front lens elements reduce chromatic aberration to a minimum and also ensure sharp, quality images of high contrast. The lens' Hyper Sonic Motor (HSM) provides silent, high-speed and precise auto-focusing with full time manual focus override. The lens also features a drop-in 46 millimeter filter holder in the rear part of the lens barrel, which can be rotated to facilitate the use of filters, including a polarizing filter. Since focusing and zooming do not change its overall length, this lens is easy to hold and use. In addition, since the front of the lens does not rotate, a circular polarizing filter can be easily attached and used. This lens accepts both 1.4x and 2x APO EX Tele-Converters (sold separately).