Choosing the right ND filter for your DJI Mavic, Phantom, or Spark can be quite the task since there are so many types and brands of filters available. Here are a few videos that take a deep dive into ND filters and will help you decide which type of filter(s) will work best for you:
Drone Film Guide
Ikopta
As for filters brands, here are some manufacturers who consistently produce quality DJI drone filters:
- DJI
- Freewell Gear
- PGYTEC
- PolarPro
- SKYREAT
- Taco-RC
You’ll find additional brands when searching for filters on sites like Amazon and eBay. The above list is not inclusive, so those other brands could be options to consider too. Make sure you check out the reviews carefully to ensure the filters fit well, are made of quality materials, don’t cause gimbal overload issues, etc.
Here are links to view a list of commonly used filters by DJI drone: