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That's the ideal way of doing it, yes. The cameras are set up just like your two eyes.
Steve's got practical experience doing this, but I'm still wondering if it's possible with a fast frame rate burst. The key would be you would have to be tracking the subject with the camera by rotating the angle of the camera. The different position and slightly different angle would create a slightly different perspective of the subject akin to the difference between your left and right eyes. In post, you'd overlay and align the subject. The background would shift, but i think that'd...Show more →
No, that's backwards: in normal stereo vision, at large distances the difference your left and right eyes see is much less. So yes, it doesn't work. In an air-to-air scenario, by the time the subject aircraft has moved relative the the photo platform enough to form a decent stereo image, it's moved over the background a much greater distance. Plus, the background may be moving in the wrong direction relative to the subject.
Theoretically, if you could arrange things so that the subject aircraft is moving aft relative to the camera position just a bit faster than the ground is sliding by (also in the aft direction, obviously), you could make it work. But only if the subject aircraft is at the same time absolutely stable in its flight attitude (roll, yaw, pitch).