A Real-World Review of the Kolari R Magnetic Clip-In Light Pollution Filter For Canon RF Mount

A Real-World Review of the Kolari R Magnetic Clip-In Light Pollution Filter For Canon RF Mount

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Kolari Clip-In Light Pollution filter shown alongside Canon R6
I recently traveled to a remote area of Western Colorado for a large-format astrolandscape and Milky Way photo commission. The goal was a complex image: two rows of eight tracked images for the sky, and two rows of eight focus-stacked images for the foreground. Despite the dark location, significant light pollution spilled over from a nearby city. For a 95″ wide, high-resolution print, clean raw images were crucial. I used the Kolari R magnetic clip-in light pollution filter to address this challenge, and this Kolari Vision review shares my experience.

Kolari R Clip-In Filter: Features & Functions

I found this filter to be a great asset since it clips in to my camera directly in front of the sensor and under the lens via a light magnetic mount. I love this style because I can use it with any lens, regardless of whether it has front threads or not (I’m looking at you, you big bulbous front element) and I don’t have to worry about moving the filter if I change lenses. It just sits there doing its job quietly and unnoticed.
The Kolari R filter exhibits high-quality construction with an all-aluminum frame that easily snaps into place via a small magnet. Its durability is evident, and the low-profile design and hydrophobic coating simplify cleaning. An added benefit is the extra layer of sensor protection it provides. However, a crucial point for this Kolari Vision review: for astrophotography, ultra-wide and wide-angle lenses can cause significant star stretching in the corners. This makes it unsuitable for lenses like my 14mm due to severe distortion.

Kolari R Filter: Comparative Tests

During the project, time constraints prevented on-location comparative images. A clear, moonless night with specific foreground and Milky Way alignment is a rare annual event, making a 4-hour shoot a race against time. So, for this Kolari Vision review, I conducted new tests near my home, 25 miles from a city of 100,000. Passing clouds amplified the city’s light, making the filter’s effects more evident. The filter notably reduced overall light pollution and, more significantly, eliminated the unsightly yellow cast, resulting in much cleaner color.
35mm Without Filter
35mm With Filter
35mm Corner Without Filter
35mm Corner With Filter
50mm Corner Without Filter
50mm Corner With Filter

Kolari R Filter: Pros & Cons

PROS:
  • Convenient clip-in design works with any lens.
  • No need to adjust or change rings when swapping lenses.
  • Effectively removes yellow color cast from light pollution.
  • Durable, all-aluminum construction.
  • Easy magnetic installation and removal.
  • No noticeable glares, reflections, or ghosting.
  • Manufacturer lifetime guarantee against defects.
CONS:
  • Severe distortion in corners with wide-angle lenses.
  • Not available for all camera models.

Kolari Vision Review: Conclusion

Overall, the Kolari R filter is a fantastic tool. While it won’t eliminate all light pollution, it significantly reduces its effects, leading to cleaner, more true-to-color images that are easier to post-process. The main drawback for this Kolari Vision review is its limitation with ultra-wide and wide-angle lenses due to the clip-in design. However, for astrophotography and general night shooting with longer focal lengths, or when employing techniques to mitigate distortion, its convenience strongly outweighs the negatives. For those not requiring pinpoint star accuracy, this filter is highly recommended for achieving cleaner night images, provided you understand its limitations.
Picture of Marc Rassel

Marc Rassel

I am a landscape astrophotographer based in Central Minnesota, USA. Recently selected for the Milky Way Photographer of the Year – 7th Edition (2024), I’m a photographer who focuses on the night sky and the wild landscapes that sit beneath it. Whether it’s an aurora storm over the Arctic, the Milky Way stretched across desert rock, a moonlit ridge line in the mountains, or the fleeting drama of a total solar eclipse, I’m drawn to moments where natural light and land meet in powerful, often unpredictable ways. Over the years, I’ve traveled extensively in pursuit of these scenes—always aiming to capture what’s real, not just what looks good online. My goal is to create images that are clean, high-resolution, and grounded in the actual experience of being there. I come from a background in photography and printmaking, and I approach every image with attention to both field technique and final presentation. I avoid the artificial look that dominates much of today’s digital work and prioritize clarity, subtlety, and accuracy. I’m more interested in results than hype, and I share what I learn so others can build on it instead of starting from scratch. My work has been featured by National Geographic, Forbes, The Weather Channel, EarthSky, DailyMail, DP Review, and more. I’ve also led photography workshops in a wide range of environments—from remote deserts to icy mountain passes — helping photographers refine their skills in real-world conditions. Ultimately, I’m not interested in turning nature into spectacle. I want to photograph these places as they are—still, quiet, wild—and create images that hold up over time.

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