Well, I'll let others address the "steadiness"... but just a couple of points...
If you are shooting stuff on the
ground or on the
horizon (
not including any part of the airplane, passengers, pilot, etc. in the frame), you won't have to worry about focusing. Everything will be far enough away that you can focus your lens on infinity and not have to worry about it.
Nextly, why shoot at a higher shutter speed? That's just going to make your video look choppy and more jittery. The rule of thumb is that a "normal" shutter speed will be "one over twice the frame rate." That is, if you are shooting 24p, a normal shutter speed would be 1/48th of a second. If you were shooting 30fps, it would be 1/60th. That speed gives you the motion blur that your eyes and brain need to interpret it as smooth motion. A higher shutter speed should only be used for certain effects, when you
want that "narrow shutter look." See
Saving Private Ryan to see it used well. See
Gladiator to see it waaaay overused.
Lastly, the wider your lens, the steadier your shot will appear. 50mm isn't wide at all, it's right in the middle. Something like a 35mm, 28mm, or even 18mm lens will give you a much steadier shot. Of course, it will be a much wider field of view, which might not be what you want.
T2
__________________________________
Todd Terry
Creative Director
Fantastic Plastic Entertainment, Inc.
fantasticplastic.com