आधिकारिक टिप्पणी
We recommend the use of a circular polarizing filter but not and ND filters due to the issue you are describing. A polarizer will typically cut 15-20% of the available light which is a reasonable trade for not having the strong reflections but an ND filter will likely cut it universally and too much. Even the ND8 (3-stops) is going to increase your exposure time by a factor of 8.
The slow down of the aircraft is there to keep the images from becoming unusably smeared. Keep an eye on that Motion Blur number that gets color coded. We attempt to slow the aircraft down to the point that that value does stays white, not yellow or red which indicate too much smear.
If you don't want Map Pilot to make that call for you you can turn it off the "Slow Aircraft According to Light Conditions" setting.
