Sigma EM-140 DG TTL Macro Ringlight Flash (Guide No. 46'/14 m) for Sony Alpha

This Item Includes: Controller Unit Flash Unit 55mm Lens Adapter Ring 58mm Lens Adapter Ring Cordura Carrying case 1-Year Warranty 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 Sony's ADI flash operation system • 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]