NiSi Switch Filter Holder 100mm is a holder which works with 100mm square filters (2mm thick).
This filter holder works with the 82mm main adapter which is included in all the NiSi kits with V6 / V5 PRO / V5 holders. If you already are a NiSi user you can just order the Switch as an additional filter holder.
The Switch filter holder allows two slots to be rotated together or independently from each other. It is designed for complex lighting situations and photographers who want to use two graduated ND filters positioned at different angles.
Switch can be rotated 360 degrees and also have a locking screw to make it stay in the desired position. All slots can be rotated easily and smoothly. It can be used with focal lenghts down to 16mm on full frame cameras without vignetting.