I got a chance to see the NiSi IR ND filters at IBC 2017 and talk to Steve Johnson, an independent film maker representing NiSi.
NiSi’s IR ND filters are made out of a single piece of high quality optical glass and are optimized for high definition 6K digital cameras. They are extremely color accurate for the budget filmmaker and show minimal colorshift to greens starting at 1.5 to 1.8. like other filters tend to do. NiSi ships them in a set of 7 from IR ND 0.3 to 2.1 (1-7 stops). They come in sizes from 4×4″, 4×5,65″ and 6.6×6.6″
Each filter features NiSi’s exclusive dual-sided nano coating technology with infrared light pollution control. With its anti-reflective coating, these filters reduce glares and reflections to deliver a clear digital images. The filter’s nano coating creates a protective layer over the glass, making it waterproof, scratch resistant and easy to clean.
The price is right! a set of 7 runs at approc € 1300,- which makes them a great bargain, against other filter which much more expensive.
Steve Johnson demonstrated the scratch resistance and water repellant features for me.
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Yellow light blocker
NiSi also brought a filter caled Yellow light blocker. The filter reduces the appearance of light pollution in images or video example in a night sky and illumination from artificial light sources. Check it out here. It’s very usable for night time shots. a 100 x 100 mm filter starts just below 200 usd.