Freewell offers high quality ND filters for DJI Mavic Pro 3.
Set of 8 filters include: ND4, ND8, ND16, CPL, ND8/PL,ND16/PL,ND32/PL,ND64/PL
Freewell GimbalSafe technology ensures each filter frame goes through a rigorous lightweight test putting no negative effect on your drone gimbal.
ND filters are something like sunglasses for a camera. In turn, the filter rating shows how much longer the exposure will be compared to a conventional lens. So, the value of ND16 shows that the matrix gets 16 times less light.
Copter pilots often want to reduce the shutter speed to about half the frame rate to get the smoothest and most cinematic shot possible. It turns out that if the shutter speed is 8 times higher than the required one, then the ND8 filter will solve the problem? Well, it doesn’t always work.
With all the filters, pictures were taken and the exposure time measured in exactly the same lighting situation without changing the ISO level or camera aperture. The effective ND number of each filter was then calculated and compared with the stated ND estimate. As can be seen from the graphs, the situation for many manufacturers is not so clear.