NiSi Filter Natural Night 40.5mm

NiSi Filter Natural Night 40.5mm – Blocks common light pollution wavelengths for cleaner night and astrophotography

The NiSi Natural Night 40.5mm filter reduces the unwanted glow from common urban light sources so your camera can capture night scenes and the night sky with cleaner, more natural colors. It targets the most common wavelengths emitted by mercury vapor, sodium, and low-CRI LED streetlights, which often pollute night images and obscure astronomical details.

Designed for night scenes and astrophotography

Use this filter when you shoot cityscapes at night or photograph the stars. By blocking specific light pollution wavelengths, the Natural Night filter helps your camera register the sky more accurately. As a result, you get clearer skies and improved color fidelity in night images without introducing a color shift.

High-quality optical glass and finishing

NiSi manufactures the Natural Night filter from precision annealed optical glass. The surface is finely ground and polished to preserve sharpness for today's ultra high megapixel cameras. This attention to optical quality helps maintain image detail and clarity when you need it most.

Advanced NANO Coating for performance and protection

The filter features NiSi's NANO Coating technology. This multi-layer coating reduces surface reflections to help control ghosting and flare during long exposures or when bright light sources are in the frame. The coating also includes a protective layer that makes it easier to wipe off water, dust, and oil without worrying about scratching the glass.

Features

• Blocks light wavelengths from common sources of light pollution.
• For Night scenes & astrophotography
• Available sizes in circular filter: 40,5 up to 95mm
• Optical Glass with high definition
• Double Sided and Multi-Layer Coating / Waterproof and Oil Resistant
• Nano Coating / Ultra Low Reflection

Specification

How it helps your shooting workflow

First, the filter blocks problematic wavelengths that create the orange and green glows common in urban night photography. Then, the low-reflection NANO Coating reduces flare and ghosting so you keep contrast in scenes with bright lights. Finally, the protective coating simplifies maintenance: wipe away water, dust, or oil without needing aggressive cleaning, which helps protect the glass and extend filter life.

Smart FAQ

Question: What does the NiSi Natural Night filter do?
Answer: It blocks the most common light pollution wavelengths from sources like mercury vapor, sodium, and low-CRI LED streetlights, helping your camera capture cleaner colors and clearer skies for night scenes and astrophotography.

Question: Is the filter suitable for high-resolution cameras?
Answer: Yes. The filter uses precision annealed optical glass that is finely ground and polished to preserve sharpness for ultra high megapixel cameras.

Question: How does the NANO Coating benefit me?
Answer: The multi-layer NANO Coating reduces reflections to minimize ghosting and flare, and it includes a protective surface that makes it easy to remove water, dust, and oil without scratching the glass.

Question: Which sizes are available for this filter line?
Answer: NiSi offers the Natural Night circular filters in sizes from 40,5 up to 95mm. This listing is specifically for the 40.5mm size.