I had actually used the Neewer ND filters for my DJI drones and GoPro for years and was always satisfied with them. Now I have also received this one from K&F for my new Mavic to test. Delivery was quick thanks to Amazon.

The filters fit the Mavic 3, which is also available from Neewer. There is not much difference in price between the two sets. K&F are a few euros cheaper, but also offer quasi-integrated polarization filters. The filters are all top-quality and sit firmly on the camera body. Even with a lot of action and turbulent scenes, there is no need to worry. The filters remain reliably in place.

With the ND filters, the exposure time in bright sunlight is extended and the pictures simply look much better than without them. There are some good apps that recommend certain ND filters depending on location, time of year and position of the sun/time. Lens flares in backlit shots are also largely suppressed, which Neewer also does well.

The lenses are easy to clean and a case is included for transport. I can only recommend. If you are looking for ND filters and do not need the polarization settings, you can also use Neewer. Neewer is occasionally on sale, unfortunately I don't know about K&F yet. Because they are new to me.