The Sigma EM-140 DG Ring Flash is ideal for photographing subjects in fine detail - close-up photography - and is extremely effective for scientific and medical applications.
Dual flash tubes can fire simultaneously or separately. Using only one flash tube creates modeling, which can give a three-dimensional feeling to the subject. The Modeling Flash function makes it possible to check for reflections and shadows before actually taking the flash picture.
A wireless flash function is also available, where the EM-140 DG is used as master and the EF-500 DG Super as a slave unit for creating fine shadow details. High-Speed Synchro and Exposure compensation functions are also available for advanced flash photography.
- Fully dedicated with E-TTL II Canon EOS cameras (A-TTL not supported)
- Wireless TTL flash control (4 channels), with Manual Exposure possible
- High-Speed Synchro flash
- Stroboscopic effect (power level and frequency customizable)
- Modeling light, also provides AF assist
- Backlight illuminated LCD panel
|Guide Number||46' / 14.02 m at ISO 100 (50 mm Position)|
|Angle of Coverage||80° Horizontal
|Recycle Time||Approx. 4 to 6 Seconds|
|Exposure Control||Canon E-TTL / E-TTL II|
|Power Range||1/1 to 1/64|
|Internal Power||4 x AA|
|Mount||Shoe Mount (Controller), Lens Mount (Flash)|
|Lens Compatibility||55mm/62mm Filter Threads (via Included Adapter Ring)
52mm/58mm/67mm/72mm/77mm Filter Threads (via Optional Adapter Ring)
|Dimensions (W x H x D)||3.0 x 5.4 x 3.2" / 7.6 x 13.7 x 8.1 cm (Controller)
5.0 x 5.1 x 1.2" / 12.7 x 13.0 x 3.0 cm (Ring)
|Weight||15.1 oz / 428.1 g (without Batteries)|
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