K&F has been a great company that my husband and I always go to when it comes to camera accessories. We used this brand for a similar filter in the 85mm size and now that we have a different lens we went with the 58mm polarizing filter. It's super thin as they say and it works really well. It helps with exposure movement and portrait shots as less light gets into the lens when you're looking for a moodier vibe and reflections are reduced. Kind of acts like an ND filter and adds a little more contrast and color.

bought the polarizing filter for the camera kit of my Xiaomi 14 Ultra. The polarizing filter fits perfectly on the camera kit's adapter. The lens cap is nice to have. I have no experience with these filters, so I can't judge how good or bad this one is compared to others, but picture 4 shows a shot without a filter, picture 3 shows a shot with a filter, and there is a clear difference! More will only become apparent when testing "in the field", but the first impression is very good.

The polarizing filter from K&F Concept is delivered in a plastic box together with a cleaning cloth, a lens cap and a strap for attaching the lens cap. Quite a lot of accessories! It's just a shame that the filter slides back and forth in the box without any additional protection. A few cents for a suitable lining would have been worth it. The filter can be easily screwed onto the lens and - so far - removed just as easily. The rotating ring for adjusting the polarizing filter, on the other hand, is very stiff, which I personally don't like so much. Nevertheless, the workmanship does not give a cheap impression at all. According to the manufacturer, the glass has a nano coating, but in my opinion this can only be sparse. When used, this filter changes the colors more than the filter I normally use in a higher price range. All in all, this filter is a very interesting offer, especially for occasional users. At currently just under € 22 for the 67mm version, the K&F Concept polarizing filter is very cheap and offers quite decent quality. I could do without the lens cap and strap, but of course the accessories are not a disadvantage. I give the polarizing filter four stars.

I've tried it out now. Can't complain. Great accessories and perfect for my application.

The ND filter set for the GoPro Hero 9 - Hero 11 was well packaged and delivered quickly. The four supplied ND filters should also act as polarizing filters. You can get great results with these filters. Especially on sunny days you catch more details. But the filters are also ideal for water recordings or the like, as metallic reflections are eliminated. I could also see this in my test shots. I had similar experiences with the ND filters. These are like a pair of sunglasses for the camera, the higher the value, the darker the image. When filming in 4K 30fps, the shutter speed should be 1/60 to make the footage look cinematic. However, this is impossible on sunny days, even if the ISO is 100. So it needs an ND filter to darken the image. If you want to record with 60fps, you should set the exposure time to 1/120. This requires an ND filter with a small value. So far I have only used the ND8 and sometimes the ND16 filter on very sunny days. The other filters are only suitable for special applications or for long exposures. I am also satisfied with the processing quality of the filters. They are made of aluminum and glass and are very light. The filters can also be attached and removed without any problems. They also sit very firmly on the camera. Finally, you get inexpensive ND filters with an integrated polarizing filter that help you record the video with the ideal exposure time.

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K&F Concept 77mm True Color Polarizing Filter HD optical glass, double-sided, 30-layer nano-coatings, circular polarizing filter (CPL), aluminum frame, water-resistant, scratch-resistant, fingerprint-proof I use filters... when I have to. Polarizing filters are among the filters that can make a real difference in terms of contrast enhancement/glare reduction in certain lighting conditions. It is important that I find this filter: - Excellent optical properties. Limited sharpness loss. (as good as it gets). - Neutral color - Adjustable polarization by rotating the filter as intended. - Thin. This filter is thin and should not cause vignetting in most cases. For the same reason, it can be combined with another filter without the risk of vignetting. While this is standard these days, it makes removing the filter more difficult than with thicker filters. - The threads are well formed and the filter screws on easily. - The light loss is about 1 stop, which is typical for today's high quality polarizing filters and better than the 2 stops of previous generations. Note for landscape photography: It is not recommended to use a polarizing filter with ultra wide-angle lenses in landscape photography, as they produce an uneven sky. That's a good filter. It performs above its price. Worth considering. Accordingly recommended.

This is my first camera backpack ever, but I knew exactly what I wanted. It should... - of course look good - be of good quality - have space for light luggage/food - functional and have space for my GX80, lenses and filters. It has some really cool details, such as: the closure and the color. The camouflage is rather subtle, which makes it look completely different. It is made of nylon, so it is extremely durable. Anyone who prints this on a 3D printer knows this. It is wonderful to wear, the zippers are very smooth and protected from splash water. A rain cover is included, but unfortunately it is not sewn securely into the ground. My GX80 with 3 lenses, color gradient/polarizing filter fits in easily. It also has a laptop compartment and a lot of storage space, even for longer trips for two. Except for the last one, the photos were all taken with the GX80 and the K&F polarizing filter and were not edited.