Greg,
Noting that you took 30 second exposures, you would have to have taken a few seconds to recompose the next image. If this was 8 panels, then, there's 4 minutes of exposure in total, and, a whole bunch of seconds for the recomposure for the next shot. Do you find that when stitching the panels that there's a bit of an error zone where the stars don't necessarily line up? Or, do you not worry about it, considering that it will only ever really be noticeable in print?
H
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