The main advantage of this filter is the adapter ring and the filter itself adheres to the ring/lens magnetically. As to the performance of the filter itself, it works as you expect a polarizing filter to perform. The ability to place and remove the filter quickly is the main attraction to this kit and sets it apart from its screw-on/off counterparts. So far no issues with the optical quality of this filter. K&F is a go-to for me when looking at filters and this one is of the quality I have come to expect from them.

On the market there are different types of CPL filters of different quality, workmanship and obviously price.
For those who do not want to spend so much, the products of this brand may be right for you thanks to the excellent quality/price ratio.

Even in this new type of filter, with the new technology, particles came in, the quality is really excellent both constructively and functionally, we will have a magnetic filter that will be applied to a ring that is previously screwed to our lens so that we can then apply all the magnetic filters we have in our possession.

This filter has a particular feature compared to the previous ones, the nanoparticle technology is a coating that guarantees excellent water resistance, i.e. the small droplets of water will slide much more easily on the glass, leaving no traces that can stain or create halos on the lens.

The filter itself works very well like all filters of this kind by turning the filter clockwise or counterclockwise we will apply more or less this kind of filter that will cut or in any case reduce reflections and lights, especially on reflective surfaces such as glass and water or even on the hair it will remove the reflection of light, creating a more homogeneous and less luminous hair.

A good product to always keep with you for various occasions where reflections can damage our photographic creations.

Glass is clean with no imperfections. The ring is machined perfectly and slides on to a 82mm Sigma art lens perfectly. 5/5 stars

The K&F Concept 67mm Magnetic Polarising Filter has been a game-changer for my photography. This ultra-slim, circular polarizing filter is perfect for my lens, thanks to its high-quality Japan optics and multi-coated design that minimizes reflections and enhances color saturation. The magnetic feature is incredibly convenient, making it easy to attach and remove without any hassle.

One of the best aspects is its ultra-slim profile, which doesn’t cause vignetting even on wide-angle shots. The multi-coating not only improves image quality but also provides effective protection for my lens. Plus, the included cleaning cloth is a thoughtful touch, ensuring that I can keep the filter spotless and maintain optimal performance.

Overall, this CPL filter has exceeded my expectations. It delivers vibrant colors and reduced glare, which significantly improves the clarity and contrast of my photos. If you’re looking for a reliable and easy-to-use polarizing filter for your lens, this one from K&F Concept is a solid choice.

I've absolutely loved all of the filters I've gotten from K&F. All of them have been perfectly clear, packaged great, and threaded perfectly across each setup I've used them on.

A magnetic polarising filter, what a brilliant idea! I rarely use a polarising filter as I find them a faff. With this one I screw on the filter ring over my existing UV filter (also K&F Concept but I think all filters are pretty standard and just leave it in situ, no need to remove it every time. The polariser just pops on and off so easily, without being unsecure that it will just drop off during use. I haven't tried walking and bouncing around with the filter on, just in case, only when I am actually using it. The polariser just twists to the position you want and it doesn't affect the ring at all, it doesn't unscrew from the lens. And it does it's job as a circular polariser. Comes with a lens cleaning cloth too. I think this is going to change my landscape photography for the better.

Another excellent filter from K&F Concept who produce quality products at reasonable prices.

I have to say that I am glad that I did, as the filter is very high quality and yet affordable. This filter features an aluminum filter frame, and multi-coated front and rear optical glass elements and comes with a magnetic filter mount.

The quality and workmanship of the filter were evident once we received and checked it. The filter glass remains clear and free from scratches, fingerprints, or any other marks, the magnetic mounting ring provides a secure connection to my lenses and does not move or vibrate, and the polarizer dial turns effortlessly. The leather storage pouch that comes with it is also a plus when it comes to maintaining the condition of the filter when not in use.

When I affixed and applied it during some of my photography sessions, particularly landscape ones, this filter performed perfectly in darkening skies, eliminating reflections, and boosting more saturation and contrast in my shots, just as an effective polarizer ought to. The multi-coatings also contribute in minimising flaring and enhancing transmission of light. Because the frame depth is virtually paper thin, it’s possible to stack them behind other filters with no loss of image clarity due to vignetting.

In summary, I am satisfied with the characteristics of this magnetic circular polarizer by K&F Concept. I was very glad to see that it provides all the utility I would expect for a filter in a much higher class and a much more expensive brand name.” In conclusion, for the photographer in search of a good CPL filter that is slim and budget friendly, this is an excellent option to go for.

This filter feels well made out of quality materials. I see no visual anomalies physically on the filter, nor on the captured image. Colours, clarity, and sharpness are all as expected. Overall an excellently designed and executed product.

Excellent quality magnetic polarizing filter: the kit includes an “empty” 72mm ring to be screwed onto our lens and the filter is simply magnetic, attaches to the other ring and comes off much faster than a “classic” filter.
This increases the thickness of the 'filter' since there are now 2, but for those who change filters often it can be a very convenient solution.
Fair price, also included a microfiber cloth: 5 stars for me.

I've been shooting with 35mm cameras since I was 16 years old and that was 56 years ago. I have a collection of cameras I use and lots of accessories including filters that I can use across my camera collection. I've always found changing filters while shooting to be a pain. Screwing them on and unscrewing to remove them. It takes time and coordination. Then about a year ago I was introduced to magnetic filters.

Magnetic filters remove the need to screw on and off the filters you are using. There is an adapter ring which screws on to the front barrel of the lens and the filter's outside rim is magnetized so instead of screwing the filter on and off it mounts and adheres to the adapter magnetically. To replace filters you just need to pull off the filter to be removed and pop on the desired filter. No screwing needed. I'm sold on them.

I now have magnetic adapters for each of my main lens diameters and am slowly replacing my conventional filters with the magnetic filters. Most brands of magnetic filters are compatible with each other so you can mix and match.

I've been buying K&F concepts filters for a long time. I'm confident in their quality and I know that they stand behind their product and for the price, you can't go wrong.