K&F CONCEPT 67mm True Color Polarising Filter (CPL) – Nano-X Series MRC, circular polariser

If you shoot through glass—cars, windows, lakes, shiny street scenes—a polarising filter is one of those accessories that can quickly make images look less “flat”. This K&F CONCEPT 67mm True Color Polarising Filter is a circular CPL designed for camera use where autofocus and metering rely on a specific filter type.

On paper, the pitch here is quite clear: True Color coating to address a yellow cast during video shooting, polarisation to cut harmful reflections, and a multi-resistant coating stack to help with glare, ghosting and everyday grime. It’s not a magic wand, but it’s aimed at improving colour consistency and contrast when reflections would otherwise steal the show.

Key takeaways

This is a 67mm circular polariser (CPL) from the Nano-X Series line, built to reduce reflections while aiming to keep colours looking more natural—especially during video work. The filter uses optical glass (claimed to minimise light distortion) and a multi-layer coating approach to help with surface reflection and unwanted effects like ghosting.

There’s also an ultra-slim, lightweight aluminium frame design meant to reduce the risk of dark corners when paired with wider lenses. Still, whether you’ll notice that benefit depends a lot on your specific lens and how wide you go.

The essentials

A circular polarising filter works by letting you control the amount of polarisation effect you see—usually by rotating the front ring. In practical terms, that means you can:

• reduce reflections from non-metallic surfaces (think water, glass and glossy paint)
• increase perceived contrast, particularly in bright daylight
• help colours look less washed out when glare is fighting you

Where this one tries to stand out is the “True Color” focus. The coating is described as addressing the problem of yellow pictures during video shooting, aiming to restore more accurate-looking colour. If you’ve ever pulled footage into editing and felt the white balance and overall colour tone didn’t quite behave, that’s the sort of issue this filter is targeting.

What stands out in day-to-day use

The combination of polarisation and anti-reflective coating is the main day-to-day story. On bright days, you typically want two things: less glare and fewer “hazy” artefacts from light bouncing around the filter surfaces.

The description also mentions MRC (multi-resistant) features: a green coating to reduce surface reflection and help limit ghosting, plus resistance to scratches and water, oil and dust. That doesn’t make it indestructible, but it does suggest the filter is meant for regular outdoor use rather than only careful studio sessions.

There’s a second practical element that’s easy to overlook: the filter uses double-sided polishing. In the field, that translates to a better chance of getting clean, natural colour and clarity even when you’re shooting longer focal lengths—like telephoto work around a 500mm setup (mentioned in the product description).

And yes, the ultra-slim/lightweight approach is specifically relevant for wide-angle shooting, where thicker filter frames can sometimes create dark corners.

What you should watch before buying

Two checks matter before you commit.

First, the filter size: this one is for 67mm lenses. If your lens doesn’t use a 67mm thread, you’ll need a step-up/step-down ring setup (assuming your system allows it), which adds cost and can complicate things.

Second, wide-angle vignetting: the frame is described as ultra slim to avoid dark corners, but lens geometry varies. If you shoot very wide on a lens that is already sensitive to vignetting, it may still need testing.

Finally, colour accuracy claims are always “on paper” until you see results with your camera and lighting. The True Color coating is aimed at reducing yellow shifts in video, but real-world outcomes depend on your exposure, white balance approach and the scene itself.

Who it suits (and who may want to skip it)

It makes sense if you’re planning to use a polarising filter for video and stills, especially when reflections and glare are common in your shooting. It also suits people who want a more protective, multi-resistant coating on the filter surface for outdoor handling.

It may not suit you if you only occasionally shoot in situations where reflections are a problem. A CPL isn’t always necessary, and it’s one of those purchases that really earns its place when your subjects include water, glass, shiny surfaces, or strong daylight.

If your priority is purely basic protection with minimal fuss, you might find simpler filters more practical. But if you’re specifically trying to improve contrast and manage unwanted reflections (and you shoot video often enough to care about colour shifts), this is pitched directly at that need.

Practical tips for getting the effect

A CPL only works well when you rotate it properly. Try this quick workflow: set up your shot on a bright, reflective scene (for example, a lakeside view), compose first, then slowly rotate the filter while watching the scene through the viewfinder or on the screen. Stop when the reflections reduce the most while the scene still looks natural.

For telephoto shots, the product text suggests the filter design helps keep colour clear even under long reach setups. If you’re shooting tight framing from a distance, that’s exactly where cutting glare can make small subjects look more “separated” from the background.

Is it worth it?

Buy it if you want a 67mm circular polariser that focuses on reflection control and more natural colour handling for video, with a multi-layer coating strategy and an ultra-slim frame aimed at reducing dark corners on wider angles. It’s a solid match if your shooting includes water, windows, glossy surfaces or frequent daylight scenes.

Skip it if you mainly shoot indoors, avoid reflective subjects, or you’re not sure your lens benefits from a slim filter design. Also, if you’re working with a different thread size, you’ll want to factor in whether using adapter rings fits your workflow.

Mini FAQ

Does this filter help with reflections?

Yes. As a polarising CPL, it’s designed to effectively eliminate harmful reflective light, which is especially useful for water, glass and shiny surfaces.

Is it suitable for video?

The product description specifically mentions True Color coating aimed at solving yellow picture issues during video shooting.

Will it cause dark corners on wide-angle lenses?

The frame is described as ultra slim and lightweight to help avoid dark corners for wide-angle shooting, but actual results depend on your lens.

What does MRC mean here?

The description refers to an “MRC” feature using a 28-layer multi-resistant coating approach, including claims about reducing surface reflection and ghosting and improving water, oil and dust resistance.