rmarshall

I didn't say to shoot at 30 seconds. I said to keep it under 30 seconds, as a general rule, and I explained why.
Somebody playing around with a slow kit lens (I assume 18-55mm, f3,5-f4.5) might be tempted to go wide angle and take a shot of the milky way, for example. This might cause the camera to want to go over 30 seconds on auto. The result would be arcs.

Edit: Here's a link that pretty much supports your argument: http://www.flickr.com/groups/canon70...7605132314286/

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