Sigma EM-140 DG Macro Ring Flash (Nikon AF)
Key Features:Ideal for Close-up photography, especially medical and scientific applicationsFully dedicated with the latest TTL auto exposure systemsFlash tubes can be switched on or off for creative flash controlWireless Slave Flash ControlHigh Speed Synchro FlashGuide Number of 14 w/ISO100The EM-140 DG Ring Flash is ideal for photographing subjects in fine detail when the shadowless mode is used and is extremely effective for scientific and medi








