Quote:
Originally Posted by Craig_L
Great shot Peter. So much detail yet so little noise for the relatively short exposure. What software do you use for noise reduction?
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I generally never use noise reduction software... certainly none was used here.
An 'oft mis understood feature of the camera I use (no prizes for guessing the manufacturer
) is their dead-nuts-accurate chamber temp (patented) so provided you take accurate darks and flats, the calibrated image noise is extremely low....provided you keep the shot noise down by using long enough sub exposures. With H-Alpha I typically use 15 minute subs.
20 minutes would be better, but they greatly increase the probability of my also capturing an aircraft ( living under an instrument arrival waypoint into Sydney)
My advice would also be...if the data is noisy, simply expose longer to get more signal.