02:52 0 + Nisi introduces the 'Switch,' a filter system with independently rotating holders20:55 0 + NiSi launches variable ND filter without the dreaded X-effect
19:34unveiled 0 + NiSi Unveils the Switch Filter Holder for Rotating Two Filters Independently23:16vs 0 + 10 Stop ND Filter Shootout: Lee Big Stopper vs NiSi Nano IR