Sigma 200-500mm f2.8 APO EX DG - Nikon AF

The Sigma 200-500mm f/2.8 EX DG APO IF Lens is a massive ultra-telephoto zoom lens that offers an impressive fast f/2.8 aperture throughout its entire zoom range, all the way up to 500mm. Combined with the included dedicated high-quality 2x teleconverter, this lens can be converted for use as a 400-1000mm f/5.6 lens. Now combine this with an APS-C sized digital SLR camera, and you're looking at approximately a 300-750mm f/2.8, or a 600-1500mm f/5.6 (with 2x teleconverter) lens.

This lens covers the widely used 200 to 500mm focal length range, and maintains its fast f/2.8 aperture over its entire zoom range. SLD (Special Low Dispersion) glass and three ELD (Extraordinary Low Dispersion) glass elements provide excellent correction for all types of aberrations, and assures a high level of optical performance throughout its entire zoom range.

Shooting distance and focal length are displayed on the lens' LCD panel, which is almost a necessity with a lens of this size. In addition, a dedicated BP-21 Li-ion battery is used to power-assist the zooming and AF operation. This battery is built into the lens barrel. 

Lens Type: Telephoto Zoom
Focal length - wide (mm): 200
Focal length - tele (mm): 500

Max aperture – wide: 2.8
Max aperture – tele: 2.8
Minimum aperture: 22

Minimum focus distance (m): 2
Sensor Format: FX
Lens mount: Nikon F

Lens elements: 17
Lens groups: 13
Aperture blades: 9

Filter thread (mm): 72
Size: 236.5 x 726mm
Weight (g) 15700