Neewer 100 x 100mm Natural Night Square Filter for light pollution reduction with 30-layer nano-coated HD neodymium glass
Product description
At a glance
If you’re trying to capture a genuinely natural-looking night sky, light pollution filters are one of those accessories that can make a noticeable difference “on paper”. This Neewer square filter is designed to cool down the yellow and orange wavelengths that typically dominate in urban skies, with the goal of helping night photography and astrophotography look more true to life.
The idea is simple: by reducing the warm light entering the lens, you can end up with stars and sky tones that look more vivid and detailed compared with shooting without any correction. It’s not magic (you still need reasonable exposure and location choices), but as a dedicated light pollution reduction filter it’s aimed squarely at people who want cleaner night results without swapping camera bodies.
Key takeaways
The main selling points here are the optical glass choice, the multi-layer coating, and the square “100 x 100mm” format that suits filter holders. The filter is also described as thin (2mm), which matters if you’re stacking filters or using wide-angle setups where thickness can contribute to vignetting.
Where this can feel particularly practical is in repeat shooting sessions: the coating approach is positioned as being resistant to water, oil, dust, and fingerprints, and the kit includes a pouch and cleaning cloth so you’ve got basic care covered straight away.
It’s also worth noting the “natural” approach. Instead of giving you a dramatic, unnatural colour shift, the intention is to filter out the warm hues so the captured colour reads closer to the original night sky character.
What you’ll notice day to day
Neewer positions the filter around HD neodymium optical glass and a 30-layer NANO coating (on both sides). In real-world terms, that translates to two things to look for when you’re reviewing images:
- Less unwanted warm cast from streetlights, windows and other common sources
- Fewer reflection issues compared with filters that don’t manage flare and reflections as well
The square shape also changes the usability angle. Compared with a circular filter, a square filter can cover more of the lens area, and the entry is framed around avoiding vignetting when stacking wide angle and telephoto lenses. That’s the kind of detail that often separates a “works sometimes” accessory from something you can rely on for night sessions.
One limitation to keep in mind: this is still a single filter. If your sky is heavily clouded or the light sources are extreme, you may still need to manage expectations through shooting conditions and technique.
Tech details
This is a square light pollution reduction filter for night sky and star astrophotography, built around HD neodymium optical glass and a multi-layer coating.
- Size: 100 x 100mm
- Thickness: 2mm
- Optical approach: filters warm yellow/orange wavelengths and cools the scene colour shift
- Coating: 30-layer NANO coating on both sides
- Intended benefits of coating: resistance to water, oil, dust, scratch, and fingerprints (with easier cleaning)
- In the box: 1 x light pollution reduction filter, 1 x filter pouch, 1 x cleaning cloth
Who it’s for (and who should skip it)
It makes sense if you’re already getting into night photography or starry sky shots and you’re looking for a filter that targets light pollution specifically, rather than one that only darkens the scene. It’s also a sensible pick if you use, or plan to use, a square filter holder system for your lenses and you want the option to stack filters without everything suddenly vignetting.
It might not be the best match if:
- You’re using circular filters only and don’t have a square holder
- Your priority is general-purpose low-light shooting (this is aimed at night sky colour management)
- You expect one accessory to fully fix very harsh light conditions without good location planning
As always with astrophotography gear, check your workflow: a filter can help, but you’ll still want to dial in focus, exposure and stability.
Compatibility & requirements
This filter is described as compatible with a number of popular square filter holder systems (including Lee, Cokin, K&F, Nisi and other brand square filter holders). That said, “compatible” usually still means you’ll want to ensure your specific holder is set up for 100 x 100mm square filters and that the 2mm thickness won’t interfere with how you stack.
If you already own a square holder, it should slot into your kit more smoothly. If you don’t, you may be better off thinking about the holder requirement first, because buying the filter without the system can leave you stuck.
Is it worth it?
Worth considering if you want a dedicated light pollution reduction filter aimed at cooling down warm streetlight colours for more natural night sky tones, with optical glass and a 30-layer nano coating designed to be easier to live with and maintain.
You may want to skip it if you don’t use a square filter holder system, or if you’re primarily trying to solve a different problem (like basic low-light exposure) rather than correcting the night sky colour cast. This is a more niche purchase than a general lens cap filter, so it pays to be sure you’ll actually shoot night skies often.
Mini FAQ
Does this filter change the colour of the night sky?
The goal is to reduce warm yellow/orange wavelengths so the captured colour reads more natural, rather than creating a strong stylised colour shift.
Is it easy to clean?
The coating is described as resistant to water, oil, dust and fingerprints, and the pack includes a cleaning cloth and pouch to help with day-to-day care.
Will it cause vignetting?
The filter is 2mm thick and the square design is presented as helping avoid vignetting when stacking wide angle and telephoto lenses, but whether you see vignetting can depend on your exact setup and holder.
What’s in the box?
You should get 1 x light pollution reduction filter, 1 x filter pouch and 1 x cleaning cloth.
metadescription
Neewer 100 x 100mm Natural Night square filter cools yellow/orange light pollution with 30-layer nano-coated HD neodymium glass. Check fit for your holder.