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Old 11-12-2008, 09:34 AM
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Terry B
Country living & viewing

Terry B is offline
 
Join Date: Mar 2006
Location: Armidale
Posts: 2,790
Well done.
You can get an idea of the linearity by taking exposures of the same starfield at increasing exposures- say 10sec increases until you saturate at least 1 star in the field. Then measure the flux for a variety of stars and plot the graph. You can then see what range of fluxes are linear for your camera.
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