The 150 x 150mm NanoPro MC Clear-Night Filter from Haida is designed to reduce the appearance of light pollution in video or images that include the night sky and illumination from artificial light sources. This effect can be obtained when this filter is used on a film camera system with daylight film installed, or on a digital camera system with its daylight white balance setting selected.

Light pollution occurs in areas of the night sky that are above or near concentrated and intense sources of artificial light such as cities. These light sources can include exterior and interior lamps for commercial or residential buildings, brightly lit advertisements such as billboards, streetlamps, as well as sports and entertainment venues. Together they can result in a type of light pollution known as skyglow, where individual stars, the Milky Way, and other astronomical features in the night sky are obscured. Additionally, artificial lights clustered together can become difficult to individually discern. Light pollution from these "cluttered" sources can become a source of distraction within an image and can resemble overexposed areas of glare.

When used, the Haida 150 x 150mm NanoPro MC Clear-Night Filter can improve the results of nighttime images by absorbing the yellow light from sodium-vapor lamps, a common light source within urban areas. By preventing the dominant wavelengths of light associated with the color of those lamps from being recorded, the visibility of astronomical objects is enhanced, and artificial light sources are more clearly defined with less glare and improved contrast.

This filter is compatible with filter holders that can accommodate 2mm-thick, 150 x 150mm rectangular filters such as the Haida 150 Filter Holder and is constructed from optical glass for clarity as well as color fidelity. To prevent internal ghosting and reflections, each glass surface includes 10 layers of anti-reflection coating. These coatings offer greater protection to the filter substrate and help it to stay clean for longer than with uncoated filters. The Nano coating associated with the Haida 150 x 150mm NanoPro MC Clear-Night Filter provides an additional layer that results in an improved beading effect when in contact with water or oil for greater cleaning efficiency.

A fabric filter pouch is included with this filter for storage and transport.

For Haida 150 Filter Holder    Reduces Light Pollution in Night Sky    Absorbs Yellow Sodium-Vapor Light    1.25x Filter Factor, +0.3 Stop    Optical Glass Construction    Multi-Coated    Nano Coating    2mm Thick    Fabric Pouch

• Compatible with filter holders that can accommodate 2mm-thick, 150 x 150mm rectangular filters such as the Haida 150 Filter Holder
• Reduces the appearance of light pollution in video or images that include the night sky and illumination from artificial light sources
• For cameras with daylight film installed, or a digital camera system with its daylight white balance setting selected
• Absorbs the yellow light from sodium-vapor lamps, a common light source within urban areas
• Enhances the visibility of astronomical objects, and where they appear, artificial light sources are more clearly defined with less glare and improved contrast
• 1.25x filter factor reduces exposure by 0.3 stops
• Constructed from optical glass for clarity
• Padded filter case for storage and transport

Related Questions and Answers

Q: 1. Does this come with a gasket seal, and is it already installed? Will it fit the Lee holder with the gasket seal? If it comes with a self install seal, how does the seal attach , does it stay I. Place?

A: The Haida 100 x 100mm NanoPro MC ND 1.8 Filter (6-Stop) does not come with a gasket seal. This filter has a thickness of 2mm for use with compatible square filter holders that accept filters with a thickness of 2mm.

Q: 2. What is the technical difference between the Haida Slim Pro II & Haida NanoPro Circular Polarizer Filters?

A: This Haida NanoPro MC Circular Polarizer has the Nano coating which provides an additional layer that results in an improved beading effect when the surface comes in contact with water or oil, allowing for more efficient cleaning. And it has side knurlings to provide a more textured grip when mounting or removing it from a lens. The Haida Slim Pro II Circular Polarizer does not have the Nano coating or knurling but it is thinner and less likely to vignette when using a wide angle lens.

Q: 3. WHAT OTHER BRAND 105mm CPL FILTERS CAN BE FITTED TO LEE 105mm CPL ADAPTER ONTO LEE 100mm FILTER HOLDER?

A: As long as you have this 105mm adapter on your Lee foundation kit: https://bhpho.to/2cujqJ5 You will be able to use any filter that has 105mm threads such as this Haida 105mm circular polarizer.

Q: 4. What's the difference between this NanoPro MC ND filter and other Haida Solid ND filter?

A: This Haida 100 x 100mm NanoPro MC ND 3.0 Filter is Multi-Coated (MC) for increased strength and protection against scratches, as well as performance and quality.

Q: 5. Are these compatible with the freewell magnetic filter system so I can stack or use with other filters or the freewell adapter ring?

A: No, the Haida NanoPro Magnetic Clear Night Filter without Adapter Ring (82mm) only works with the Haida system.

Q: 6. did anyone compare this Hoida filter with NiSi or Breakthrough night sky filters. Both Nisi and Breakthrough are more expensive, but is there any advantage?

A: The NiSi is a bit better glass and slightly more correct with color than the Haida, however not by too much. If I needed to rank them I would say 1. NiSi, 2. Haida, 3. Breakthrough

Q: 7. Does this filter have a light gasket to avoid light leak when in filter holders?

A: It comes with gasket

Q: 8. Does this filter fits in NiSi V6 filter holder?

A: Yes, the Haida NanoPro CPL Circular Polarizing Filter (100 x 100mm) would be compatible for use in the NiSi V6 100mm Filter Holder.

Q: 9. Can this be used with K&F magnetic rings?

A: The Haida NanoPro Magnetic Clear Night Filter can't be used with K&F magnetic rings.

Q: 10. Would this filter work with Kase magnetic step-up rings? Kase does not make a 72mm light pollution filter.

A: Yes, you could use the Haida NanoPro Magnetic Clear Night Filter without Adapter Ring with a Kase Magnetic Step-Up Ring.