Quote:
Originally Posted by JA
Hi Colin,
It could be a combination of a few things including limitations in dynamic range, noise, insufficient exposure, too much JPEG or other compression/resizing, excessive undersampling and/or people just wanting to process for a darker background or trying to hold the core brightness lower to see more into the core. It would be hard tell without a back to back comparison controlled for some of the variables.
Best
JA
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You make some good points but with a mere 20 minutes of integration, that is what had me thinking that it should show up more.
Quote:
Originally Posted by LewisM
Don't worry Colin, good flats get rid of dust  |
Or maybe flats show the dust and lack of flats don't
Quote:
Originally Posted by RobC
I cannot see the dusty region to the right . May be due to my slight degree of colour blindness. Have you tried using the Photometric Colour Calibration tool in PixinSight.
Cheers
Rob
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I have tried PCC in the past using a G2V reference and had varied results. I didn't even do a colour calibration on this one as I'd hoped that out of camera may have been good enough
Wasn't until I got towards the end of the processing that I could see the purple cast in the core.
Quote:
Originally Posted by LewisM
Thar be dust me hearties...
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Wasn't until it did some heavy noise reduction on the scant 20 minutes that I could see the full extent of the dust.