I watch the link. The GoPro is better at daylight shots, but the Yi is better at night shots is seems (Time Segment 7:21). Image is brighter on the Yi.
Yes, that would be ideal, but I am not too familiar with Quads yet.
Some caves have very large open spaces requiring me to use several large HID lights to light them up (15,000 - 20,000 Lumen)
Much to big to mount on a DJI Quad. Lighting will have to be done from the ground.
Regarding the Yi...
I shoot a lot of caving videos. I want to introduce Quadcopter footage to this sport.
I know DJI sells their own camera and GoPro Hero5 is now out. I am also looking at the YI 4K camera.
Cave lighting is not always that good. I am looking for suggestions on which cameras do best in low light...