Quote:
Originally Posted by pmrid
That gave me an idea. I have been doing this same galaxy but with just a UV/IR Cut filter and an ASI533MC Pro with a ZWO 107FF quadruplet. I was quite happy with that but you have challenged me to do the same with an Optalong L-Extreme filter. I managed just 90 minutes of 300 sec subs at Gain 100 last night and boy, as you say, those emission areas really do pop.
As usual, I had to quit because the battery I was using ran low on juice and ASIair needs the extra grunt.
I am puzzling how to get the best of both by combining the 2 sets of images. Not sure how to do that.
More experimenting coming up.
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Hi Peter - yes there's heaps of interesting detail there in narrowband - but the trick is how to present it in a meaningful / attractive way.
Option 1: Present as a NB only image (i've seen this done before for galaxies such as M33 / SMC, and it can be quite beautiful
Option 2: Combine the R+G+B & Ha+Oiii in PI or APP or PS etc. Creating layers allows some control as to the intensity, and using tools such as continuum subtraction in PI can allow a more balanced final product. I think this is personal preference, as I know I find it tacky when a distant faint galaxy is presented with overpowering Ha regions that seem disproportionate.
Option 3: Gif image with the Broadband / NB images flashing alternating. This is actually what I'm thinking of doing as you kind of get the best of both worlds - but until I've tried it I have no idea if I can pull it off yet...
Look forward to your future experimenting - let us know how it goes!!