Hi Keith,
Since we do not have one of your videos it is hard for us to determine the source of why your video results are not smooth. Here are some suggestions:
- Need to first determine if the issue is jerky playback or technique for the yaw maneuver.
- If the issue is the yaw the maneuver the following might help:
- Pinch the yaw stick instead of pushing with the tip of your finger.
- Do not perform a yaw. Use point of interest. If you are up high enough the resulting video will be almost indistinguishable from a pure yaw.
- It neither of these help (and it is not computer limitations), it might be that your apparent motion over the ground is too fast. Try one of the following: a) higher up, b) slower yaw/point of interest rate, or c) higher frame speed.
Apparent motion over the ground is a relatively new concept for me. The other day I was taking video at with my
P4P at 20 MPH at 100 feet AGL at 30 FPS. There was something of strobe effect as the craft was moving too fast over the ground. I repeated at 10 MPH and the strobe effect was gone. Then I was doing some work at 20 feet AGL, 30 FPS, at 5 MPH and the strobe effect was back.
I thought to myself how might I perform a calculation to determine the correct forward speed of the aircraft for a given AGL and frame rate. It turns out to be a rather simple trigonometric calculation. I knew that at 30 FPS, 100 Feet AGL, and 10 MPH I was OK. From trigonometry, the angle swept out by the aircraft for 1 Frame was 0.28 degrees. If I applied this same angle at an elevation of 20 feet, I could back calculate out that the fastest the aircraft could fly was 2 MPH if I did not want to have the strobe effect at 30 FPS. At 48 FPS I could fly at 3.5 MPH. I put both into practice and got smooth video.
The point of these comments is if you are seeking smooth video, it is more than just FPS and an exposure rate twice that of the FPS. Equally important is apparent motion between between the aircraft and the ground.
Donald Barar