NiSi 49mm Natural Night Filter (Light Pollution Filter)

The NiSi 49mm Natural Night Filter is engineered to reduce the appearance of light pollution in night sky and astrophotography images captured in urban and suburban environments. This precision-crafted filter blocks the most common wavelengths of unwanted light from sodium-vapour lamps, mercury-vapour lamps, and low colour rendering index streetlights, allowing you to capture clearer, more vibrant images of astronomical objects without interference from artificial light sources. Built from high-quality optical glass with a precision-annealed construction, the filter features NiSi's proprietary multi-layer NANO Coating technology on both surfaces to minimise reflection, reduce ghosting and flare, and deliver exceptional colour fidelity. The nano coating also provides waterproof and oil-resistant properties for convenient maintenance and protection against scratches and abrasions.

• Precision optical glass construction for ultra-high megapixel clarity and sharpness
• Multi-layer NANO Coating reduces glare, ghosting and flare with waterproof, oleophobic properties
• Blocks common light pollution wavelengths from sodium, mercury, and low CRI LED sources
• Scratch-resistant coating and easy-clean hydrophobic surface
• Ideal for night scenes, astrophotography and dark-sky imaging