ND2-ND400 Filter. How does it work?

[StevenQX]

Hi, does someone have experience with this filter for P3P/P3A?

I mostly would like to know how it works, if it has a wheel and need to be manual adjusted before to fly accordingly to the sunlight conditions or it auto adjust. Thanks

 

[msinger]

They do not auto adjust. You must manually rotate the filter to set the desired brightness prior to takeoff.

 

[blilley1455]

I believe that they are two polarizing filters and one is stable while one rotates. Same effect as a pair of polarized sunglasses and a LCD watch