Sigma EF-610 DG ST Flash for Nikon Specifications: Number of flashes: Approx.120 flashes (when using alkaline batteries), Approx. 160 flashes (when using Nicd, Ni-MH batteries) Illumination angle: Automatically set in accordance with the focal length of the lens, in a range from 24mm to 105mm. Also covers the angle of a 17mm lens when used with the built-in Wide Panel Bounce angle (Up): 0, 60, 75, 90 degrees Bounce angle (Right): 0, 60, 75, 90 degrees Bounce angle (Left): 0, 60, 75, 90, 120, 150, 180 degrees Tilt angle (Down): 0, 7 degrees Compatibility: Nikon Digital SLR Cameras Power Source: Four AA Alkaline or AA NiCd or Ni-MH (Nickel Metal Hydride) batteries Dimensions: 3.0 x 5.5 x 4.6 (W x H x D) Weight: 1.3 oz.
