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Paramount
23-07-2008, 07:30 PM
Hi all
Well I have managed to do two nights imaging in a row (that's got to be a first with our weather). I managed to start imaging at 1am after having to redo the polar alignment as I accidentally nudged one of the legs on the Tri-pier (that's enough of the excuses). For once the skies were clear with no sign of cloud but the seeing wasn't brilliant partly due to the moon nearby but also there appeared to be some very thin mist in the air as the stars didn't seem as sharp as usual.
I managed 16x10 unguided subframes finishing at 4am. The image was aligned and combined in Maxim DL and I did two aggressive iterations of curves mixed with levels in Photoshop, local contrast enhancement using Noel's tools and some extra processing using gradient xterminator and noise reduction was used to try and get rid of the effects of the mist which I think I managed to reduce to a minimum. I have had to reduce the quality to be able to post it so as always there are better quality images on my site http://www.imagingtheheavens.co.uk (http://www.imagingtheheavens.co.uk/). I have also included a cropped closeup to better show the detail in the nebula itself
TMB 115, Starlight Xpress H36 with Ha filter on Paramount ME
Thanks for looking
Best wishes and clear skies
Gordon:)

http://www.imagingtheheavens.co.uk/USERIMAGES/pacmannebulaHa.jpg

http://www.imagingtheheavens.co.uk/USERIMAGES/pacmannebulaHacrop.jpg

iceman
24-07-2008, 01:37 PM
Lovely image Gordon, I don't see a pacman but I do see lots of lovely nebulosity.

are you doing flats and darks now? It looks a lot cleaner.

Paramount
24-07-2008, 01:55 PM
Hi
At the moment I am still using the simple autodark subtraction facility in Maxim DL and sorry to disappoint but I still haven't got around to doing flats yet
Best wishes
Gordon

jase
24-07-2008, 11:03 PM
Great work Gordon. This is one of my favourite nebs. It really comes up a treat in narrowband. The crop shows a pleasing display of detail. Thanks for sharing.

spearo
25-07-2008, 07:05 AM
very nice and crisp
well done
frank