Quote:
Originally Posted by rustigsmed
looks good Andrew, have you got a before Ha version to show the difference it makes? considering a Ha filter for my dslr myself.
also have you captured the Ha under a moon? does it cut out enough moonlight at 12nm?
cheers
rusty
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Hi Rusty,
Here you go, 10x 2min RGB taken from light pollutionville (with no LP filter), along with the 12nm Ha (6x 5min frames), and the much nicer reprocessed final merged result.
I've had some issues with focusing the Ha and there appears to be a difference in image scale with/without the Ha filter which made the merging interesting! It's still a bit off.
The Ha was shot under a 70% moon, and the RGB was shot after the moon dropped, but then the clouds came over (sigh). There are many useful threads about moonlight and Ha on this forum if you search about.
I used the blending technique mentioned here...
http://starizona.com/acb/ccd/software/ps_hargb.aspx????
Note that this is shot under poor seeing conditions, hazy/cloudy and light polluted - so it can only get better from here
Yes, I'm now going to get myself one of these Ha filters for my OSC
Cheers
Andy