The NiSi V7 is the latest evolution in the line of holders specifically for 100mm filters, based on the original V3 through to the V6.
Designed for lenses with a thread diameter larger than 67mm (M75 System) up to 82mm, and with a field of view of 16mm Full Frame, this is the widest used and most poplar system. It can also be used on lenses with a thread smaller that 67mm.
Although the widest fov is 16mm, it will also suit lenses such as the Nikon 14-30 F4 when the filter frame is reduces to two slots. This means a polariser and two filters can still be used with such an incredibly wide lens with no vignetting.
Incorporating a main adapter ring, which is the foundation for all NiSi systems, this accepts the included polariser. The polariser is completely light sealed and no light can enter from the rear, and it can be used independently of the filter frame when required.