This Sigma EM-140 DG TTL Macro Ringlight Flash for Nikon is a great portable lighting source. Perfect for the macro product photographer that is looking to bring in more light control over their visual effect. Featuring Fully dedicated with i-TTL/D-TTL with Nikon photo or Digital cameras , Wireless TTL flash control (4 channels), High Speed Synchro flash, Modeling light, also provides AF assist and a Backlight illuminated LCD panel for optimum small light control. The Sigma EM-140 DG TTL Macro Ringlight Flash for Nikon is a great tool for macro professionals or hobbyists.
