I've been using the K&F Concept Magnetic Black Diffusion 1/8 Filter on my DJI Osmo Pocket 3, and the results have definitely met my expectations. This filter delivers a subtle effect, precisely what you want with a 1/8 strength. It gently softens the image, reducing digital sharpness just enough to enhance footage without losing the clarity and detail you aim for in professional videography.

The mist effect is minimal, but it's exactly right for those looking to soften the digital 'edge' that can make footage feel overly crisp. It’s ideal for anyone aiming to achieve a more cinematic look without obvious alterations.

The design of the filter deserves praise as well. It fits seamlessly into the Osmo Pocket’s case slot, and the magnetic attachment is robust—no worries about the filter detaching unexpectedly. Its slim profile is another huge plus, allowing it to be left on the camera without adding bulk or requiring removal for storage.

In summary, if you’re looking for a filter that subtly enhances your video without altering the essence of your footage, the K&F Concept Magnetic Black Diffusion 1/8 Filter is a perfect choice. It scores a solid 5/5 for both functionality and design.