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Forum: Photographic Technique
10-28-2009, 05:25 PM
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If it were zoom creep the second set of arcs would still be concentric with the first, and you'd probably have radial lines or ramps joining them. I would say the camera/support moved and quite quickly too.
If you look at the bright white and blue short trails that are almost horizontal in the upper right, you will see they are the same stars that form the white and blue arcs below them near the bottom. And the three bright short blue arcs in the upper half to the left of center match the blue stars at the bottom as well.
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