Sigma EF-610 DG Super

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In dedicated wireless mode, it lets the photographer select one of four channels. This is to minimise the risk of interference from other photographer's equipment. No other flash from the other photographers present will be able to trigger yours (apart from another with a compatible master unit set to the same channel). This is very handy if you have to work at social gatherings or weddings where a lot of people fire their compact cameras with flash.

In dedicated wireless mode, the number of groups you can control depends on what flash system is used:

  • Canon: The master can control up to three groups. You can set the power ratio from 1:1 to 1:8 with the first two groups, while the third group is controlled by means of setting exposure compensation.
  • Nikon: The master can control up to three groups. You can set the flash mode and output level on each group individually.
  • Sigma: The master can only control a single group.

See this note to find out how to set the wireless modes on this unit.

Comes with carrying case and FS-11 flash stand.

Specifications

For dedicated flash systems: Canon, FourThirds, Nikon, Pentax, Sigma, Sony.
Head: 17, 24-105mm coverage, power zoom (w. manual override).
Swivel & tilt: -180° to +90° swivel, -7° to +90° tilt.
Exposure modes: TTL, HSS, Auto, Varipower, Multi.
Manual settings: 1/1 to 1/128 in 1 EV steps (8 steps).
Wireless modes: Master, Remote (dedicated), Plain slave.
Features: LCD.
Batteries: 4xAA.
Flash duration: 1/700 sec. @ 1/1 (full output).
Field upgradable: No.
Dimensions: 77 x 139 x 117 mm, 330 g.

Zoom head setting:f=35mmf=50mmf=max
Guidenumber (ISO 100, meter):364661
GNs taken from manufacturer's specifications.

Price: USD 255 (new, w/o tax).
Production: 2010-today.

For a detailed explanation of the above specifications, see the guide.

Literature

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Brand profile

Key info

Established: 1961
HQ: Kanagawa, Japan
Web: Global, EU, US, man
Map location

Sigma is a family owned manufacturer of photographic equipment founded in 1961 in Japan. The company's main business is to manufacture third party lenses. However they also produce third party flash units and, since 2002, their own line of DSLR and compact cameras. Sigma's digital cameras use a special sensor, developed by Foveon, that records full color information for every pixel. In late 2008 Sigma acquired Foveon.

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