Hello, you have to give K&F one thing, the design of the filter and the bag as well as the workmanship are 1A and I couldn't find anything particularly negative on the test images, but I still only give 2 stars. Why? 1. In my opinion, the variable gray filter ND 2-32 is poorly chosen and insufficient in terms of gradation. Many who work with gray filters use ND 8, ND64 and ND1000, for example, in order to be able to really carry out a long exposure to smooth water or people to make the moving images disappear and that is not possible or only possible to a very limited extent with the gradations from ND2 to ND32 selected here.2. The price, K&F is asking 280 euros at the moment and for this money you get a really good plug-in filter system with various filter plates incl. POL filter or a magnetic round filter system. Such systems then usually fit the entire range of lenses from 82mm screw thread onwards, while these filters only fit 67mm lenses and with a step-down ring also on smaller lenses but not on larger ones.3. For the price, it would have been desirable if you had haptic feedback on the 5 levels when you reached a level, but the filter turns buttery soft, which is very pleasant from start to finish. Conclusion: For whom can I recommend the filter? Actually only for people who don't know what to do with their money, who only have lenses with a 67mm screw thread and are too lazy to buy normal screw filters in several strengths and then change them depending on the requirement.