I've been a fan of K&F Concept for a long time and own many filters. Especially at the beginning, the cheap products were a real blessing for my wallet. I just couldn't afford expensive polarizing filters, ND filters or adapters. However, with this filter series, they impressively demonstrate that the K&F Concept can also be of absolutely high quality. I can report that just unpacking the filters is a real pleasure. Although this does not count directly in the rating, it immediately conveys a completely different feeling than with the other product series of the brand. It continues with a very attractive and haptically convincing case, which allows the filter to be removed via a tab. But now to the filter itself. I already have a few polarizing filters in use, but none of these filters really convinced me as much as the Nano-X PRO. The processing is simply top-notch, the weight feels good in your hand and the thread is fun - when screwing it on and even when unscrewing it again. Most of you will know that cheap filters like to stay in place. The optical performance, which ultimately matters, is great. Reflections are skilfully filtered and there is no falsification of the actual image. The look that emerges is simply great. If a little magic is then done in post-processing, photos of cars just look great, a completely different level. So I can give my recommendation without hesitation.

had the opportunity to test the polarization filter from K&F. Facts: • Thread size: 67mm • Multi-coating • Waterproof • Bag included The filter is delivered in an attractive product packaging. The customer's interest is immediately aroused here and he wants to get started. The bag that comes with it protects the filter optimally. It looks very robust and scratch-resistant. Furthermore, it can be adjusted very well and enables exact adjustment or fixation. The effect that can be achieved with this polarizing filter cannot be achieved in post-processing. The filter shows its quality especially with reflective water surfaces. All in all, I am very satisfied with the result of this filter. It ensures a significant increase in the quality of your images. Clear purchase recommendation from my side.

received this product as a free trial as part of the Vine program. Thanks very much. The price for the 77 mm variant is in a demanding range at €180; the expectations are corresponding. I compare the filter side by side with my Käsemann B+W KSM HTC-POL MRC nano XS-PRO DIGITAL, which is about 25% cheaper depending on the source. The K&F circular polarizing filter comes in a high-quality cardboard slipcase packaging. The actual case is just as high quality. The question is whether such a chic case is also ideal for transport - or whether the classic plastic filter box does not offer better protection against mechanical damage or moisture. I mean yes. Visually, I think the K&F filter is excellent, and that's the main thing. I can't tell the result from my Käsemann B+W filter. Both filters swallow a little more than 1 f-stop of light. The effect is indistinguishable. I don't notice any optical impairments or color shifts. See photos. In my example photos, I worked with a constant white balance. The filter can be easily screwed in. It is approx. 5 mm thick without the filter thread, my Käsemann B+W filter is only approx. 4 mm. Now my point of criticism, which leads to the deduction of a star. The filter is relatively stiff when new, in contrast to my Käsemann B+W filter. By turning it back and forth several times I got it smoother. But the circulation isn't quite even, there are places that run better and places that offer a little more resistance. No problem at all, the filter can be used without any problems, but as I said, we are talking about a high-priced product and I have the direct comparison. Four stars.

Transparency note: The product was made available to me free of charge as an evaluation sample, free of any influence or expectations. My rating is based solely on my personal assessment and experience of using the product. Evaluation: For the quick readers I anticipate my evaluation, below I explain the details of my decision-making, my impressions of the product. I only take a minimal point deduction and award 5 stars, i.e. 5 stars rounded up. My only criticism is that the filter is slightly too stiff to turn, i.e. its operation when it is screwed onto the lens, but I hope that will settle down a bit over time. No, the rotation is not difficult, but a bit tough, I expect a somewhat smoother movement here. Processing quality: The slim frame is of very good quality, precisely processed and varnished. I appreciate slim filters, they don't build up as high on the lens and thus don't limit the angle of view, especially at the extreme wide angle. Slim filters can have the disadvantage of being more difficult to handle because the grip ring is very thin. Here it is helpful if it is handy and that is exactly what the K&F filter is. I can grasp the filter very well and see no problem even with wet fingers. The glass in the filter is very high quality, optical glass, very precisely processed and absolutely flat, and also multiply coated. First take the filter in your hand and see through it, preferably against strong contrasts and straight lines, for example a facade. Here you can see that you don't see any interference. I don't see any distortion, the image is absolutely flat on the entire surface of the filter, and I don't see any color distortions, I'm very satisfied. It doesn't look any different when I screw the filter onto my lens, but here there is another aspect, possible reflections, but this is exactly what a polarization filter is supposed to eliminate. In terms of the image effect, this is absolutely indisputable, be it on the water surface or on panes, reflections are suppressed very well, as expected. But there is another aspect and that is the reflections on and behind the filter towards the lens when backlighting from small point light sources is incident at an acute angle. I don't observe any reflections here, which speaks for a very good coating and glass quality of the filter. I was pleasantly surprised by the packaging of the filter and that starts with the attractive outer packaging in a high-quality slipcase. It contains a flap case with a magnetic clasp, it is very decorative and practical, and is of significantly higher quality and classier than the widely used plastic boxes. Conclusion: The K&F polarization filter is not a bargain at currently just under €150, but it is inexpensive in the truest sense of the word and is clearly placed in the premium segment. The processing quality itself is just as impeccable as the optical imaging performance on the lens. The case that comes with it is very attractive. Only the somewhat stiff adjustment of the alignment slightly disturbs the overall impression, so I subtract half a star for this. In the overall impression, this only plays a subordinate role and leads me to an almost unreserved purchase recommendation. Thank you for your attention in reading my review. If you want, please give me feedback on it, I'm happy about it.

wasn't actually a big fan of filters, but it always had to be a POL filter. As an ignorant photographer, you get it drummed into you again and again: get a polarizing filter, you need it, because you can never get the effects of it in post-processing. So I started with cheap polarizing filters and quickly stopped. I currently have a pole filter from Rodenstock, with which I am actually very satisfied, apart from the fact that it is sometimes a bit bitchy when screwing it on and off. So far I only knew K&F in the cheaper filter line and was therefore looking forward to a comparison with my Rodenstock. The polarizing filter makes a great impression right out of the box and gave me a "wow" effect. The frame is made of brass metal and feels extremely good and high quality. The screw thread is manufactured with absolute precision and the filter itself has a strong, high-quality coating. What I then noticed when using it: how easily it can be screwed onto the lens and unscrewed again. In fact, I've never had that with any other filter. No snagging, no jerking, nothing. It doesn't degrade my photos in any way. No ghosting, no flares, no color cast. Absolutely great. All in all, I am extremely surprised by the high quality of this filter and will therefore continue to keep an eye on K&F when it comes to other filters. I am extremely satisfied and can therefore recommend it without hesitation, despite the higher price.

The CPL filter from K&F comes in such an attractive packaging that you can immediately conclude that you have something really high-quality in your hand. In the box you will find a noble-looking case with a magnetic closure, which protects the filter very well. This CPL filter is "slim", which has the small disadvantage that you can't hold it a little harder when turning. Which brings us to the only small point of criticism on my part. Otherwise you get a very high-quality CPL filter here, which fulfills its purpose brilliantly, namely to reduce or prevent reflections, which makes the photos appear richer in contrast and more interesting in color as soon as they are taken. In post-processing, there are limits in this respect, and quite apart from that, I very often save myself post-processing because the photos simply come out of the camera in a more harmonious way and without looking artificial. The quality is impeccable, the filter itself is of very high quality. The image quality is perfect, no color fringes or distortions. For that 5 stars. A filter that I absolutely recommend!

use the polarizing filter on my Samyang 85mm lens. The filter has excellent workmanship and is supplied in high-quality packaging. It easily screws onto my lens. The alignment adjustment mechanism also has just the right amount of resistance. The polarizing filter makes a clear difference in the photos. In this way, reflective panes can be rendered ineffective if they are correctly aligned. Sure, the price is not cheap, but here you get a really high-quality product. That's why I give it the full 5 stars and a buy recommendation.

Got this to improve the image quality when I am out and about in the evenings taking pictures by the coast here in Newport Beach, CA. The filter was really easy to install onto my Canon EF 70-200 2.8 L lens, and it is very easy to maintain. The pictures came out stunning, especially from the water. I am in love with this lens filter, which is my new daily driver. Worth.

Got this to improve the image quality when I am out and about in the evenings taking pictures by the coast here in Newport Beach, CA. The filter was really easy to install onto my Canon EF 70-200 2.8 L lens, and it is very easy to maintain. The pictures came out stunning, especially from the water. I am in love with this lens filter, which is my new daily driver. Worth.

This is a really, really nice CPL filter. It has a very slim design so it doesn't result in any vignetting, even while using may long telephoto lens.

Threads onto my lens easily without issue.

Adjustment of the polarizer is smooth and predictable.

There's no color shift or any other artifacts from the filter. Just crisp images with accurate color.

The filter comes with a nice fabric storage case, along with a microfiber cleaning cloth.

There's also a little instruction card that details how to use the box the filter was packaged in as a photo frame. Kinda kitschy but whatever. I just tossed it.

Great quality though.

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