K&F makes the best ND filters and these fit over the lens of my DJI Osmo Action 4 camera perfectly. This a full set of 6 Nano-X Series lens filters for shooting in any outdoor lighting situation: CPL, ND 8/16/32/64/256.When putting on the filter, make sure you hold it perfectly level with the plane of the lens it is going over. Then slide it on slowly enough that the air behind it pushes out as the filter closes the gap. Make sure you push the filter all the way down until it sits right up against the lens.The 6 filters come in a plastic storage case. It's flat and a bit on the big size (6.25" x 6.25" x .75") but it protects the filters well. A cleaning cloth is also included. This a very useful filter set for your Osmo 3/4/5 Action camera.
06/12/2025
Super ND filter, however, is the ND32 filter apparently not well glued?! As soon as I put it on the cam, it cracks. But it doesn't affect the recording, hope that it still lasts a long time without breaking down. Nothing but a clear purchase recommendation!
24/11/2025
Work well but flimsy. Unfortunately one smashed without even much effort. Picture quality is good. Quite expensive considering quality
12/11/2025
Do the job well and a lot easier to pop on than the screw filters
08/11/2025
It’s a shame you can’t get a tube style storage case for the filters. It would be less plastic used and smaller storage space. Other than that lovely 6 piece set for money.
04/11/2025