Appearance as soon as I opened the package, I slowly realized that the price was not only influenced by the polarizer itself. The presentation and packaging are reminiscent of a design product. The polarizing filter comes in a stylish slipcase with a magnetically lockable case. In theory, you could also use the included foldable stand to set up the packaging like a picture frame. Not an option for me personally, but you have to admit that the developers of the packaging went through the design concept from start to finish. It could hardly be more elegant. Personally, I would still prefer a robust hard case, but that's a matter of taste. Regarding the filter: I mainly use my polarizing filters in product photography and occasionally in real estate photography, mainly to combat reflections or to partially eliminate them. Anything I do right when I'm shooting takes less time later in post-processing. As you can see on the test images, you can keep surface reflections in check with a polarizing filter. In the meantime, reflections can also be reduced better with software, but you get easier and better results with a polarizing filter. A polarizing filter is still a must-have in some areas of application. The Nano X-Pro achieved very good results in my test and can keep up well with my existing polarizing filter. I haven't been able to test how well it reduces flares and ghosting, as I'm currently photographing very little landscape and outdoor scenes. For future outdoor use, it comes with the luggage. What I don't like is that the filter ring is a bit too cumbersome to turn. This bothers me, especially when it comes to freehand photography, which I do a lot. On the other hand, a ring that moves too easily is not good either. When the camera is on the tripod, the somewhat difficult turning doesn't bother me at all. As you can see, it's a matter of taste and basically not a negative point. Overall, a very high-quality polarizing filter that is very well made and works very well. On very tough photo trips, I would either pack it in a different case, otherwise I would be too worried about the expensive piece.