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