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The other trick you can use is median average every second image, ie median average odd and even and then SUM. This is the equivalent of doubling your exposure. And of course every third or fourth if you have enough frames.
This also evens out any sensor noise as there is bound to be some drift being unguided.
Bert
Last edited by avandonk; 16-02-2007 at 11:33 AM.
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