The flash features a guide number of 14 with ISO 100. The Modelling Flash function makes it possible to check for reflections and shadows before actually taking the flash picture. A wireless flash function is also available when the Sigma EM-140 DG is used as master and the Sigma 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
Features - Sigma EM-140 DG Macro Electronic Flashgun For Sony
Compatibility with Sony and Digital SLR Cameras
Kit Content Sigma EM-140 DG Macro Electronic Flashgun For Sony Controller Unit Flash Unit