3 x software configurable Fn buttons

Multiple 1/4"-20 and 3/8"-16 accessory mounting holes with anti-twist divots are incorporated into the top plate for mounting accessories to your camera

Replaces Two AA Batteries

Controller for Swit S-2630

NiSi Swift ND16 4 stop 82mm wireless go 3 x software configurable FnNew True Color film added to the optical glass Highest quality HUC (High ultra Clarity) optical glass, a NiSi exclusive, with Multi Ti coating and water repellent for easy cleaning4 Stops Full Spectrum Neutral Density FilterPerfect together the NiSi True Color VND 1 5 stops to get 5 9 stops ND variationsCan be used with the NiSi Swift System Adapter Ring to get 4 stops exposure reduction ###split### The NiSi True Color ND16 4 stops filter is the ideal