Superior to Lee Big stopper.
Can be used wide angle lenses. Suitable for 150mm filter holders from NiSi, Lee Filters, Haida Photo. Fits any filter holder that can take 150mm wide filters and 2mm thick filters.
NiSi ND filter selects high quality neutral density glass and with precision polishing on both sides to make sure there is low colour shift and high definition. The colour of Resin material ND filter is easy to fade and there will be colour shift. Moreover, resin material ND filter can’t reach HD standard.
The raw material of NiSi ND filter has been through a lot of tests. Firstly we will test the spectrum of each batch of material with Japan Shimadzu Spectrometer UV-2600.and we will shoot pictures using the samples. After being sure there is no colour shift, Then we will make mass production.Moreover, we will test if the glass is HD or not with large-dimension substrate identification test equipment from Military Optical Instrument Company.
The NiSi 150x150mm Nano IR Neutral Density filter is specially designed for landscape photographers. This filter is made from high quality optical glass (not resin) with nano coating to prevent losing any single bit of detail. Neutral density filters do not affect the coloration of the image and the 3.0 density provides a 10 stop reduction in light from entering the lens. This filter measures 150mm x 150mm and is compatible with any Nisi 150mm filter holder.