Quote:
Originally Posted by philip.ed
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I don't see how camera shake can explain a continuous spiral pattern in the tracer smoke as shown in that video. It would explain the wiggly tracer light, but that isn't a spiral effect -- it is an erratic wiggle. But for the tracer smoke, as the camera moves across the scene, the smoke remains in its spiral pattern.
I assume the spiral pattern comes from tracer rounds that tumble.