I have used the Nano-X black diffusion filters on my Lumix camera and an older DJI Action 4 because it takes the edge off the digital precision of modern sensors and lenses to create a subtly more organic film-like feel.

In terms of effect, it delivers softer halation on highlights for a smoother roll-off, but most importantly without sacrificing shadows or mid-tones and avoids contamination in the bokeh. I am surprised this is not more talked about because they do this better than practically any diffusion filter out there regardless of price.When it comes to this version for the DJI Action 6, it works just as well. The 1/4 is enough to gently finesse the video and create a more natural film-like look. This is especially important for me when I need to insert a clip into a longer piece using the Lumix camera where I want to maintain a consistent cinematic look.The glass has a 28-layer coating, which makes it highly resistant to flare and makes it tough as nails, which is exactly what you want on a camera that can operate in the worst conditions. It has a knurled grip on the sides that makes handling easier, especially when you are cold and wet, then it just snaps into place.In short, these are really high-quality filters that serve a practical purpose, rather than just giving you a foggy look, so you can practically put it on there and forget it. The effect is tangible, yet relatively subtle, which is exactly what I expect from premium-quality filters like the Nano-X range.