#1	Neutral Density Variable Filter allows photographer to set the density between 1 and 5 stops XSPro Vario ND mount is an extrawide design and should avoid vignetting concerns with most 17mm lenses on a full body frame
#2	MultiResistant Coating MRC with Nano Technology with XSPro mount and brass ring construction
#3	May be combined with additional BW ND Filters of fixed value for higher density choices ND Vario should be used the as the outermost filter when combined
#4	BW ND Vario filter can be adapted to your individual requirements