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Old 25-10-2013, 02:19 PM
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Merlin66 (Ken)
Spectroscopy Wizard

Merlin66 is offline
 
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 6,954
Jay,
pixel=20
dark inc bias=4
flat inc bias=2
bias =2

your way
20- (4/2) = 18

No not correct...
The flat dark removes the Bias
20 - (4/(2-2))=16
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