I am very proud to have a partnership with NiSi Filters , i use NiSi Filters exclusively and in my view NiSi products are the highest of quality and at the forefront of ND filter technology .
NiSi are fast becoming the go to filter brand for photographers worldwide
Check out the NiSi Filters Videos here - NiSi ND Filters Video
this image - shot with NiSi Filters - ND16 (1.2 GND) and ND1000 (10 stop)