The “K&F Concept Nano-K Series Black-Mist 1/4 Filter 72mm” comes in a plastic box that you first have to figure out how to open. Even when you've mastered it, it's still cumbersome. There are also 3 microfiber cleaning cloths, individually wrapped in sleeves. I chose a diameter of 72 mm in order to be able to use as many of my lenses as possible with it using adapters. The filter has a corrugation several centimeters long on two opposite sides, so that it is particularly easy to grip. As the English name "mist filter" roughly translates to "fog filter", the filter creates an effect or mood like fog, especially with lights. In addition, this filter makes the skin appear a little softer. I'll start with the second point, with the skin: The effect is minimal and should be seen more as a positive side effect. Significant wrinkles/skin imperfections remain visible and only slightly lose their sharpness. It's different with lights. That is also the main purpose. Here the effect is very clear as the pictures show. The filter gives lights a glow or aura. The image with the sharp edges is without the filter and the image with the glow and smooth transitions is with the filter. Conclusion: an inexpensive Black Mist filter for beautiful lighting effects. Only the box is suboptimal. The filter gives lights a glow or aura. The image with the sharp edges is without the filter and the image with the glow and smooth transitions is with the filter. Conclusion: an inexpensive Black Mist filter for beautiful lighting effects. Only the box is suboptimal. The filter gives lights a glow or aura. The image with the sharp edges is without the filter and the image with the glow and smooth transitions is with the filter. Conclusion: an inexpensive Black Mist filter for beautiful lighting effects. Only the box is suboptimal.