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Old 22-12-2009, 06:59 PM
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bojan
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Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 7,105
For example, the maximum exposure I can obtain without guiding is 30 sec with my 1000mm lens.
From this I have 75% of frames usable, the rest are not as a result of jitter (caused by transfer gears, 47 teeth, from gear box to worm).
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