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 flashtube 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 No.: 46' (14 m)

Number of Flashes: 2

Max Usable Diameter Size: 77mm

Modeling Light: Yes

Angle of Coverage: 80° (vertical/horizontal)

Auto f/Stops: No

Vari-Power: Yes; Full, 1/2, 1/4, 1/8, 1/16, 1/32 & 1/64

TTL Dedication: Yes; E-TTL II

Recycle Time: 6 seconds with alkaline batteries
4 seconds with NiMH batteries

Power Source: 4 AA batteries

Dimensions

Controller: 5.4 x 3.2 x 6.7" (73 x 136 x 82.5mm)
Light unit: 5 x 5.1 x 1.2" (127 x 129 x 30.5mm)

Weight: 15.1 oz (430 g) [without batteries]

فلاش دوربین سیگما MACRO EM-140 DG

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