K&F Concept has launched a nice filter set for the DJI Nano. In addition to 3 gray filters (ND 8, 16 and 32), a pole filter is also included. The gray filters are used to maintain certain shutter speeds for filming, while the polarizing filter reduces reflections on non-metallic objects and thus ensures improved color saturation.

In my experience, the filters are very good in terms of quality and can also be easily screwed into the DJI Nano. Please unscrew the Nano lens protector first. I didn't recognize that directly and was a bit surprised at first. The fit is right and the polarizing filter can of course be adjusted by turning.

All filters from K&F Concept fulfill one important detail: they have a seal! This also preserves the sealing of the DJI Nano. The nano is therefore waterproof to a certain extent even with the filters, as advertised by the manufacturer.

The K&F Concept set receives 5 stars from me and a recommendation to buy. The optical quality is right, the filters have a seal and the set is currently cheap at less than 30 euros. There is also a cloth to clean the filters and a good case for the filter set. In my opinion, this was a complete success.