Guide number
53/m(174/ft) ISO 100/m(with the zoom head at 105mm):

24mm : (m) 28, (ft) 92
28mm : (m) 29, (ft) 95
35mm : (m) 31, (ft) 102
50mm : (m) 40, (ft) 132
70mm : (m) 45, (ft) 149
85mm : (m) 48, (ft) 158
105mm : (m) 53, (ft) 174

Power source : Four AA alkaline or AA NiCd or Ni-MH (Nikel Metal Hybride) batteries

Charging time : 6 seconds (when using alkaline batteries) approx. 4 seconds (when using NiCd, Ni-MH batteries)

Number of flashes : Approx. 220 flashes (when using alkaline batteries) approx. 100 flashes (when using NiCd, Ni-MH batteries)

Illumination angle : Automatically set in accordance with the focal length of the lens, in a range from 24 mm to 105 mm. Also covers the angle of a 17-mm 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, 70 degrees
Dimensions (W x H x D) : 77 x 139 x 117mm / 3.0 x 5.5 x 4.6 inch
Weight : 335g / 11.8 oz. (without batteries)