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Old 16-01-2009, 01:53 PM
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prova
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Join Date: Aug 2007
Location: Canberra
Posts: 490
Do I need to guide to produce good images?

Wondering if the need for guiding is an absolute must for deep-space astrophotography? I want to start imaging galaxies but wondering if I get my polar alignment and drift "bang-on" upto around 4-5mins (unguided) will this exposure time suffice if there are 2+ hours of data?
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