The KF-Concept CPL polarizing filter is delivered in high-quality packaging. The filter is also located in a sleeve made of felt/imitation leather with a magnetic closure cap. A microfiber cloth is also included for cleaning the filter. The filter itself is a round filter made of tempered glass in the "slim" version. It is particularly compact and thin, which is particularly useful with compact lenses. The filter works excellently. There are no color fringes, air pockets, color casts or discolorations visible. The polarization effect can be easily and precisely adjusted on the side by screwing the filter. Conclusion At the time of my purchase, this polarizing filter cost EUR 179.00. High-quality glass filters in this quality class are usually significantly more expensive. So I think the price/performance ratio is very, very good. It's not for nothing that KF-Concept named this filter line Flagship - the filter is worth every cent and really is an excellent addition to my existing screw-on filters. So I'm giving it 5 stars and I hope my review was helpful

I've known K&F for a while now and have one or the other product from them (UV filter and camera backpack). For me, the brand was always technically good value for money and more in the middle price segment. But now they want to know and are penetrating into the high class area. A CPL filter is used for reflective environments such as water, panes and glasses or the sky. Exactly these reflections are taken out here and you manage to take pictures down to the bottom even with clear water. So for me, especially on vacation, it's always a filter. The filter comes very nicely packaged and is a lot of fun unpacking. Anyone who loves unboxing will get their full enjoyment here. The filter comes in a cloth/leather bag. Very nice in itself, but in my opinion a filter sits more snugly in the well-known plastic boxes. The inside of the packaging can be converted into a "picture frame". Funny idea but I think there are nicer ones. But let's get to the filter itself. Here I have to say again that the performance matches the price and is absolutely justified. Flawless workmanship, both on the filter thread, ring and glass. Only the ring is a bit difficult for me personally. If the filter doesn't fit snugly on the lens, it has happened to me that I unscrewed it instead of adjusting it. The glass is of the best quality and the optical performance cannot be distinguished from a CLP filter from the well-known competition. In summary, a very good filter in terms of quality and optical performance. It has weak points in the somewhat loose fixation in the storage bag and the stiff ring. For the price, I really hope that things like this don't happen. So unfortunately I have to deduct a star.

received the polarizing filter for free as part of the Vine program to test. Since mine from another manufacturer is already getting on in years and does not fit my most used lens, I was happy about it. Even the packaging is very high quality and the supplied bag is very well thought out and easy to handle. You can even make a pretty frame out of the packaging. A microfiber cloth for cleaning is also included. The filter does a good job removing annoying reflections and enhancing the colors in the image (green from the grass, blue from the sky and also white against a blue sky). For this reason, the filter is great for landscape photography. Naturally, the polarization filter reduces the light by up to several f-stops. However, this must generally be taken into account when using such filters. However, this is not a problem, especially when taking landscape photos with a tripod. The filter was inexplicably stuck (couldn't find any handling error or wedging) on the lens when first used. That's why I only gave it two stars in the rating. He also does not use force to remove. It could only be removed again using a special tool from a third-party provider. After that I changed the rating to 5 stars. Because the filter lost some color on the frame when I tried it without special tools, but it held up great and still worked great. Now and then I can't get it off when using it. But after I screwed something on the adjustment ring for the polarizing filter, it then came off again. Just not without problems. That's why I'm correcting my rating again! 4 stars this time. It's still a mystery to me why this works. You can hardly grab it because the back ring is so narrow that you can't grab it with your bare hands. In my opinion a design flaw! This high-quality filter offers good value for money.

Is a polarizing filter the same as a polarizing filter? No, that is not so. Polarizing filters polarize to a greater or lesser extent. That shows you the price you pay for it. But there are other things too: A really good filter does not have a light metal frame, because this could twist under pressure when screwing in and the filter could seize up. This polarizing filter has a heavy and precisely made brass mount, the rotary ring to bring the polarizing filter into the right position runs smoothly and smoothly. Additional corrugations on the socket prevent fingers from slipping when turning. This is also bitterly necessary, because the filter is designed as a "slim version" with a very short overall width in order to also be suitable for wide angles. The filter's coating looks impressive and I'm happy to believe that it's particularly effective at preventing reflections (although this could only really be proven in a comparative test). The polarization effect is very good and there is no color deviation in Lightroom. I have never owned a photographic filter that was so elaborately packaged - yes, almost "staged" - like this professional filter from the Chinese manufacturer Shenzen Zhuo Er. With this, the manufacturer wants to underscore its claim of being at the forefront of the market segment. I take it for granted that he can do that. In terms of manufacturing quality, the filter easily reaches every Heliopan or Rodenstock filter. Of course, it also costs accordingly. I'll be happy to buy a few more filters of this type - I've got a taste for them now. Do you automatically make better pictures by using such an expensive filter? Definitely not. If you were previously satisfied with your image results, this filter will not open up a "completely new world" to you. But if you're eager for every technical possibility to improve quality, then, yes, you should really consider switching to these fantastic filters.

An 82mm polarization filter from the K&F Concept brand from the Nano-X PRO series is supplied. Overall, I find the presentation very valuable, appealing and goes for me in the PRO area - the price too ;-). The unboxing was a WOW! experience for me. A filter that puts a smile on your face when you unpack it has to be good - ..and it is. I think the filter is really great! It is well made, makes a high-quality impression, can be easily screwed onto the Tamron 24-70mm 2.8f G2, the imaging performance is great and I don't see any dark spots, "ghosting" or the like at the edges (as with some other cheaper manufacturers /products). The reflections can already be taken out when taking pictures, which in turn reduces the tedious post-processing. I left the scratch test at this point, after all I want to use the good glass with maximum performance ;) I don't need a scratch on it for the time being, it will inevitably come by itself at some point. Now to the one catch: the packaging, i.e. the transport box, is not 100 % mine - why? Because I'm more of a hard-shell type, where I can put the filter. Nicely laid out in itself, but not quite as practical for me personally. Conclusion: for me, the polarizing filter is a great choice. Certainly not a snapper at first glance, but you also get a high-quality product for such a price. I have already mentioned the weakness with the case mentioned above. It's not really my thing, but ultimately it's also a matter of taste. In the end, what counts is the quality of the polarizing filter, and it's great!

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.

The filter is packed in a small design object. The bag is well thought out from front to back and just as well designed. But: a lint-free hard case would be much better. Unfortunately that was nothing. A filter is always a compromise. I put a layer between the object (light) and the lens. Thus, quality is inevitably lost. In this case, the loss is very low, which speaks for a very good quality of the glass. The reflection of the surfaces is visibly reduced. The ambitious price matches the performance of the filter. However, I don't use the filter bag, but take a hard plastic box - just like always.

I 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.

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.

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 sample 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.