Yesterday I flew for the first time with the Polar Pro filters. I am very happy with the results. However, there is an issue on some of my pictures that I didn't ever see with only the factory lens cover. I have attached a photo showing what I mean. There is a "spot" toward the center over the highway that I believe is a reflection of some sort.(It's not on all of the pictures, only a few where the camera is facing toward the morning sun) I am sure there is a technical term for it, and some of you professionals can educate me. I use lightroom and Photoshop, but am a novice at best on those programs. I don't pretend to know what I am doing when it comes to editing photographs, and I am learning as I go, but as you can see, taking pictures of construction progress for work doesn't always need professional editing, it's more about content than quality. Thanks in advance!
Filter: Polar Pro ND4
Phantom 3A
F-stop:f/2.8
Exposure time: 1/231 sec.
ISO-100
Time of Shot approx. 10 a.m. EST

That appears to be lens flare
See here

Jkeller84 Posted at 2015-12-10 15:35
That appears to be lens flare
See here

Thank you!

Are you using a Polar Pro ND filter, if so than you shouldn't see that nearly as much as the stock DJI filter.

DJI-Ken Posted at 2015-12-14 10:02
Are you using a Polar Pro ND filter, if so than you shouldn't see that nearly as much as the stock D ...

Ken, Yes. Actually, this is the first time I have noticed it. I never had this with the stock lens cover. I got the 3 filter set. The polarized, the ND4 and the ND8.  This was with the ND4. See original post.

Ahh, didn't see the ND4 you used. I also have that same 3 pack, I haven't used them yet but I have the DJI ND4 filter and haven't noticed any lens flare.