Recently, I designed and built a wing-tip tie-down mount for my GoPro Hero 5.  It works great, but I have to admit I really worry about having that expensive GoPro hanging out there!  Also, I thought I might like to make some videos with 2 cameras - one outside on the wing and one inside behind the pilot/passenger.  So, I did a bit of searching and decided to get an inexpensive camera for the wing so as to cut my losses should it part ways with the airplane! Ha!  I settled on the Akaso EK7000  - only $43.25 at the time I purchased it!  It has a reasonable number of features and comes with a waterproof case and several accessories for mounting which, while not GoPro quality, are certainly GoPro compatible.  It can transmit and be controlled by a WiFi app on your phone and also comes with a wrist-mount remote control.  It does not come with a memory card (can use up to 32 GB), but it does come with 2 1050mah batteries and a charger.

I knew I would need a neutral grey prop filter, so I mounted the cam in it's waterproof case and used an old "Flight Flix" filter that I could just tape in front of the lens.  On Ebay, I found a very inexpensive neutral grey plastic filter that will clip over the waterproof case and provide a little better protection.  I've ordered one and will see how it works, but the taped-on filter works OK for now.  (The taped-on filtter is slightly shading 2 corners of the video.) The case has a GoPro-compatible mount, so I mounted it to my tie-down mount and made this test video: Akaso EK7000 Test Flight

I was very pleased with the image quality and color.  The image seems quite stable despite the cam does not have image stabilization.  The microphone is obviously inside the waterproof case, but the engine sound was still picked up and I didn't notice any wind noise.

... and obviously, the camera stayed with the airplane for the entire flight!  ;>)

Thought this might be of interest to anyone wanting a low-cost video option for aerial videos.

John

N750A