Sigma EM-140 DG Macro Flash Flashes

Product Description

Ideal for Close-up photography, especially medical and scientific applications. Fully dedicated with the latest TTL auto exposure systems. Dual flash tubes can be switched on or off for creative flash control. Wireless TTL Flash Control. High Speed Synchro Flash. Guide Number of 14/m, 46/ft (ISO100). Multifunctional Macro Flash designed to work with Digital & 35mm Film SLR cameras.