how to do this effect in video?? i use sony vegas
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you don't specifically need any one special camera, though that could help, just multiple cameras. these pictures are made by alternating rapidly from two-three shots taken at the same time, but at slightly different positions along your x-axis, like 1in or so. the idea is to replicate the interoccular (distance between your eyes) with the two pictures, so that when repeated back and forth your eyes perceive a 3D space, not individual pictures. So like get two identical or very similar cameras, and set them next to each other and trigger them at the same time. then just convert the two pics to a gif and you should be set.
also, you can't do this with video very effectively because every frame would have to be twice as long to compensate for multiple pictures. this is approaching dealing with shooting in 3D. And the effect only works really in small bursts too because it relies on the back and forth of the pictures to generate the effect, so your video would look like it is starting and stopping.
it may be cool to do for like a single shot of something, but consider this shot like a freeze frame. also, you can't extrapolate this effect from video footage because the footage is only from one angle, and like i said before, you need at least two very similar but slightly offset shots for this effect to be produced.