Sigma 200–500mm f/2.8 EX DG lens

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200–500mm f/2.8 EX DG
SIGMA 200-500mm F2,8 EX DG.jpg
Key features
Maker: Sigma
Image stabilization: No No
Ultrasonic motor: No No
Short back focus: No No
Macro capable: No No
Application: Wildlife, Sports
Technical data
Type: Zoom
Focal length: 200-500mm (400-1000mm with included teleconverter)
Frame coverage: Full frame
Aperture (max/min): f/2.8-f/22
Construction: 13 groups / 17 elements
# Diaphragm blades: 9
Close focus distance: 200-500cm
Max. magnification: 1:7.7
Physical
Max. diameter: 236.5mm
Max. length: 726mm
Weight: 15.7kg
Filter diameter: 72mm (rear drop-in)
Accessories
Lens hood: Custom
Angle of view
Diagonal: 12.3 to 5 degrees
History
Introduced: January 2008
Retail info
MSRP US$ 32,000

The Sigma 200-500mm f/2.8 EX DG lens is a professional-level telephoto zoom lens made by Sigma Corporation.[1] It is notable for being the first lens with an aperture of f/2.8 and a focal length of 500mm.[2] This combination allows very distant objects to be photographed at high shutter speeds in dimmer light, compared to other telephoto lenses. It also allows for very narrow depth-of-field and diffuse bokeh. The main markets for such long, fast lenses are wildlife and sports photographers.

The lens is available in Canon, Nikon, and Sigma mounts. Due to the size and weight of the lens, there are some unusual usage considerations. Both focus and zoom are by-wire, driven using an internal battery-powered motor. The lens has an LCD panel indicating the current zoom and focus distance.[3] Tripod usage is mandatory, although unlike the similarly-sized Canon EF 1200mm lens, the Sigma 200-500 f/2.8 does not include a tripod. The lens also ships with a dedicated 2x teleconverter, which transforms it into a 400-1000mm f/5.6, maintaining autofocus operation.

References[edit]

  1. ^ Sigma Corporation (2008). "200-500mm f/2.8 EX DG". Retrieved 2009-08-20. 
  2. ^ DPReview (2008). "An ultra telephoto zoom lens offering a fast aperture of F2.8 at the 500mm focal length". Retrieved 2009-08-20. 
  3. ^ Juza Nature Photography (2009). "Sigma 200-500mm F2.8 EX DG Review". Retrieved 2009-08-20.