Polar pro makes gradient filters for the MA. They are darker on the top than in the bottom which balances out exposure. It is hard to get good exposure of ground and sky simultaneously because the sky is a few stops brighter than the ground. They are 100 dollars. have you used them and are they worth it?
www.polarprofilters.com
Gradient Collection | Cinema Series
Gradient filters for aerial cinematography to balance exposure between the sky and the ground. Included in the Cinema Series Gradient Collection are: ND8/GR, ND16/4, and ND32/8 filters. Graduated filters help reduce the exposure of the sky when it is brighter than the ground. Capture Perfection...
www.polarprofilters.com
