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Old 17-06-2007, 05:21 PM
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CometGuy
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Join Date: Feb 2005
Location: Brisbane
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Richard,

If this is a 16" dob you will be lucky to get much more than 0.1-0.2 second exposure before trailing occurs (and this assumes there is no shaket from the camera shutter/mirror). With a 10 second exposure (assuming you use a tracking platform) you should see more than your eyes alone.

Autofocus is not possible with the telescope.

Terry
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