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This flash was designed for dedicated OTF TTL use. It is not compatible with the type pre-flash TTL found on DSLRs. Even in manual mode, it does not fire in the hot-shoe of a modern DSLR.
Comes with an optional 18 mm wide panel.
Legacy flash (may not work well with a DSLR).
Head: 18, 28-80mm coverage, power zoom (tracks lens).
Swivel & tilt: no swivel, 0° to +90° tilt.
Exposure modes: Varipower, OTF.
Manual settings: 1/1 to 1/16 in EV 1 steps. (5 steps).
No built-in wireless modes.
Trigger voltage: 4.7 volt.
Flash duration: 1/100 sec. @ 1/1 (full output).
Field upgradable: No.
Dimensions: 116 x 76 x 107 mm, 280 g.
|Zoom head setting:||f=35mm||f=50mm||f=max|
|Guidenumber (ISO 100, meter):||32||36||43|
|GNs taken from p. 84 in the manual.|
Discontinued: Yes, replaced by: Sigma EF-430 ST.
For a detailed explanation of the above specifications, see the guide.
- Download manual from www.cameramanuals.org.
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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