Did you have a cable release or use your self-timer? Sometimes even the vibration of your hand depressing the shutter button can cause some blur on long exposures (with a tripod).
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Canon 40 D - 28-135 f3.5-5.6; 17-50 f2.8; 50 f1.8; Speedlite 580 EX II
Canon A1 (film) - 50 f1.8; 135 f3.5; 28 f3.5
Wishlist: 24-70 f2.8L or the 24-105 f4L; 85 f1.8
Taylor's Perspective - Daily Photo Blog | web site - a work in progress
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