The Sigma EF-610 DG ST flashgun features a powerful Guide Number of 61. The autozoom function automatically sets the optimum illumination angle in accordance with the lens’ focal length in a range from 24mm to 105mm. When the built-in Wide Panel is used, the EF-610 DG ST can cover the angle of 17mm. For bounce flash, the EF-610 DG ST flashgun head can be tilted up by 90 degrees, to the left by 180 degrees, or to the right by 90 degrees. The EF-610 DG ST can also be tilted down by 7 degrees allowing ease of use for close-up photography.

ELECTRONIC FLASH EF-610 DG ST

Powerful, fully automatic flashgun for easy operation

- Powerful light output with a Guide number of 61
- Designed to work with all popular SLR cameras
- Illumination covers a focal length from 17mm to 105mm
- Fully automatic flash photography for easy operation
- Tilt and swivel head for bounce flash photography

The Sigma Corporation is pleased to announce the launch of the new ELECTRONIC FLASH EF-610 DG ST.

The EF-610 DG ST features a powerful Guide Number of 61 and is designed to work with the latest TTL auto exposure systems of all popular digital and film SLR cameras. It features TTL automatic flash exposure control for easy operation.

The autozoom function automatically sets the optimum illumination angle in accordance with the lens’ focal length in a range from 24mm to 105mm. When the built-in Wide Panel is used, the flash can cover the angle of 17mm. For bounce flash, the flashgun head can be tilted up by 90 degrees, to the left by 180 degrees, or to the right by 90 degrees. It can also be tilted down by 7 degrees allowing ease of use for close-up photography.

In addition to automatic mode, the flashgun also features a manual flash mode, making it possible to set the flash power to full or 1/16. When the flashgun is fully charged, a confirmation ‘ready’ light will be emitted and the flash exposure level can be checked through the camera’s viewfinder. Other features incorporated into this flashgun include the Auto Power-Off function to help save battery power.

THE SPECIFICATIONS

Guide Number 61/m(200/fit) ISO100/m(with the zoom head at 105mm)
ZOOM 24mm 28mm 35mm 50mm 70mm 85mm 105mm
G.N.(m) 28 29 31 40 45 48 61
G.N.(ft) 92 95 102 132 149 158 200

Power source Four AA Alkaline or AA NiCd or Ni-MH (Nikel Metal Hybride) batteries
Charging time Approx 6 seconds (with alkaline batteries) Approx. 4 seconds (with NiCd, Ni-MH batteries
Number of flashes Approx.220 flashes (with alkaline batteries Approx.100 flashes (with 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,Right) 0?60?75?90 degrees
Bounce angle (Left) 0?60?75?90?120?150?180 degrees
Bounce angle (Down) 0? 7 degrees
Dimensions(W X H X D)/
Weight 77×139×117mm/3.0 X 5.5 X 4.6 inch/
305g (10.8oz.) (without batteries)

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