Nissin MF18 Ringflash for Nikon

Unique Fine Macro mode 
Revolutionary Fine Macro technology stabilizes the precise fine light control from 1/128 to 1/1024 in 1/6 Ev steps fine turning to achieve the accuracy of microscope. While in Manual mode, the power ratio can be adjusted from full power to 1/64 in 1/3 Ev steps. This mode helps to achieve more stable quality when shooting high sensitive images.