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Old 30-08-2010, 09:15 AM
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multiweb (Marc)
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Join Date: Oct 2007
Location: Sydney
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Quote:
Originally Posted by rcheshire View Post
I'm not ready for the big boys forum, so here is M8 reworked... it needs more data, flats etc... I think it has become a little saturated, but I didn't clip the BP this time - I did check that.

More data is needed, but the filter works and there is considerably more signal over an hour compared to 2 hours without.

Those little red wavelets (to give them a name) throughout - not sure what that is... but I think, more nebula breaking through?

...here...
It is really a very good picture. You just need to do a couple of very simple processing steps to make it 100%. Your green chanel is perfect. Your blue channel is white clipped. Load it in PS and check your stars. They're punched in the middle. Could be a number of reasons. You use a small aperture scope and your subs were too short or you pushed the saturation too high. That's an easy fix though by doing a star mask and using a median filter to spread the luminosity back into the core. Your red channel is the only source of noise in your shot. Again if you do one pass of noise reduction in the red you'll improve this shot ten folds.
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