Thread: Focusing DSI II Pro Camera Through a Ha CCD Filter
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Old 03-03-2010, 04:34 PM
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Ric
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Ric is offline 		 
Join Date: May 2006
Location: Wamboin NSW
Posts: 12,405
Hi Dean, I agree with Frank. I usually use a 2nd or 3rd mag star with my Bhartinov mask and Ha filter.

I never have a problem with focussing and can make out the spikes very easily.

cheers
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