I dont have either 3M or 3E, so my input may be worthless. I thought the 3E has the 4/3 camera with mechanical shutter, which should be better than the 3M for mapping, unless you absolutely need the multispectral results for your particular project. Anyways, I have my backup Phantom 4 Pro V2 for sale if you sold your phantom 4.
Arnie 512-796-4188
Arnie 512-796-4188
