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Old 18-03-2009, 03:41 PM
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gregbradley
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Join Date: Feb 2006
Location: Sydney
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A couple of nice shots there Steve.

360 seconds is kind of short for one shot colour though.

I talked with Alan Homes of SBIG one time as I had a one shot STL11.

His advice was to take the longest subexposure time you could like 20-30minutes to get the best results.

I think this is because the Bayer matrix causes the chip to lose a fair bit of QE (sensitivity) and also because it reduces the colour noise.

I think the best strategy is to max out the cooling - don't worry if its an odd number, use adaptive darks (in CCDstack you can select different ways of scaling your darks - I found it works really well). And to go for the longest subs you can with your tracking.

Greg.
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