Let me clear up a few misconceptions. CP filters can be useful on a drone in some very particular circumstances. They are most effective when the light is 90deg to the camera, not at all effective if the light is behind or in front of the...
Just today I spoke on the phone with a DJI person who called regarding another order (no problem). He said if I ordered a Mav 4 Pro from Canada it would be no problem to get care refresh but given the problems with customs getting it shipped...
If you consider ProRes to be an All-I version which I think it technically is, then Mac computers (and many others) have hardware support built in so processing that is very, very smooth. For whatever reason, both Mac and PC users are reporting...