The NiSi 150x150mm Natural Night Filter is a new addition to the NiSi
range and our first filter exclusive for night photography. Between
mercury vapor, sodium, Low CRI streetlights, there are many undesirable
wavelengths of light that pollute the night sky. The glow from these can
keep your camera from seeing the sky properly and effect your night
images. Because of this, NiSi has created the Natural Night Filter to
block the most common wavelengths of light pollution. Like the rest of
the NiSi line, this filter is made of high quality, precision annealed,
optical glass. Its surface is finely ground and polished to ensure
sharpness for today’s ultra high megapixel cameras.
The NiSi Natural Night Filter features NiSi’s unique NANO Coating
technology. This multi-layer coating reduces reflection on the surface
of the filter to help with ghosting and flare. It also includes a
protective layer that makes it easy to wipe off water, dust, and oil
from the filter without worrying about scratching your glass. The NANO
Coating process achieves this without loss in sharpness
