Quote:
Originally Posted by Tandum
I'm still plugging away at narrowband when the weather permits and I managed to grab a few subs last night and will hopefully get another go on Friday or Saturday night to get some more.
So far this is 8 x 20min S2, 6 x 10min Ha and 6 x 15min O3.
Tak FS-102 @ F8, QHY9 @ -30C and Baader Filters.
Stacked in maxim, processed in CS3 and no flats yet.
Over sharpened ya think ? And how do you bring out the yellow ?
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I shot that some time back and got this:
http://www.narrowbandimaging.com/m17...2hao3_page.htm
if you want to have it look like that then you need to boost up the Suflur and Oxygen channels and attenuate or at least tone down the Hydrogen
Ha is about 3x to 10x stronger than these other lines so you need to accomodate that in your processing.
I personally don't do sharpening. You can see how that looks in my image.
you have good data but I recommend working the levels and curves to get more full use of the available color gamut.
At the moment you are dominated by Hydrogen
here's an article I wrote on the subject back in August of 2005 that appeared in Sky and Telescope that describes the method I developed for this way back in the late 2001/early 2002 timeframe
http://www.narrowbandimaging.com/tri...crisp_page.htm