4-Stop Polarizer (ND16) (4.54g): The 4-stop ND filter is what we use on partly cloudy to mildly sunny days where we need to knock the shutter down by 4 stops to achieve a shutter of 1/60th.
5-Stop Neutral Density Filter (ND32) (3.47g): The 5-Stop ND filter is what we use on extremely bright days. This filter is designed to take down the Phantom 3's shutter speed by 5 stops. This is a very dark filter so it should only be used where there is enough available light to reduce. We use this shooting in the desert or over snow on very bright days.
6-Stop Neutral Density Filter (ND64) (3.47g): The ND64 filter is designed to give you control of your shutter speed. The filter reduces shutter speed by 6 stops which is perfect for getting shutter to 1/60th or 1/50th on extremely bright days. The slower shutter speed allows you to capture epic, cinematic quality content even in the brightest conditions.
The Following guideline is a good starting point for when to use each filter while filming with your Inspire 1, Phantom 3, or Solo. The goal of this chart is to reduce the camera’s shutter speed to 1/60th to give areal videos a smooth cinematic look, rather than a choppy high shutter speed look. A popular way of filming areal video is to have your shutter speed at double the frame rate. So if you are shooting 1080/60, then you want to try to achieve a 1/120th shutter speed. Or if filming 4K/30 or 24 you will want to be near 1/60th shutter speed.