Hey guys, we shot video last night and a couple of hours today. For starters, the gimbal is so free of friction when not powered that it is in fact easy to see that the CF card does make it off balance slightly. The lens cap makes the camera noticeably front heavy as well. We use the magic lantern firmware and sometimes shoot raw footage and the 32gb CF card is good for about 5 minutes of raw footage. To counterweight the imbalance of the heavier card, I used a dime and double sided tape on the opposite side. This perfectly compensated for the difference.
Coming from AlexMos boards and months of tuning my own gimbals for DSLR, its very important that the gimbal is balanced. This Zenmuse has adjustment screws everywhere to mover the camera up/down, fwd/back, and Im certain that they tell you not to touch any screws for fear you will make it worse instead of better. So if you want to run a filter, there is NO reason you can't. You just either need to add the same amount of weight to the back of the camera, or, move the camera a millimeter back by loosening the adjustment screws on each side. I actually had to do this on mine, because from the factory it was perfectly balanced with the lens cap ON!...but very back heavy with it off. Believe me, I was freaking out over loosening the screws that are on each side, but after literally a millimeter of adjustment, it was perfect. It took 2 minutes. It was also very easy to make the same amount of adjustment on each side, because the screws were up against the end of the slot, vs just a tiny bit away. With a filter, you'd just go the other way.
Anyway, I got over it and we filmed today and last night as I mentioned. This gimbal does require a can bus cable connection from the zenmuse gimbal control box, up to the flight controller. Fortunately, the part of the gimbal that holds the box doesn't turn. So yes, it uses slip rings and you don't have to worry. No wires to tangle.
Last night in the dark we shot this...
https://www.youtube.com/watch?v=QYiShaB8IHo
Today's footage was worthy of a demo reel, and I will incorporate that and link it soon...
All I can say is this... It is SO nice to not worry about tuning, vibration, jello, or PID settings. The gimbal works so well that I can finally concentrate on the shot, instead of worrying about the stabilization, checking the clips in between...just in case I have to reshoot. This think is worth double what it costs and I would pay double if I had to. It is that good.
Also, with regard to the A2... With the Wookong M, even with the V2 IMU, when switching from GPS to Atti, the copter would always omit an audible change in prop speed, as well as drop about 8 inches. The A2 does not do this what so ever. I used to have to call out to my cam operator that I was switching because it would scare the life out of him if I didn't. He would always think something was going wrong. On the A2, you can't tell I switched. Also, the GPS antenna picks up 11 or 12 satellites. The WKM didn't get that many. The GPS hold is so amazing, that when hovering, the video looks like a still photo. Can't recommend it enough!