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Old 22-03-2015, 09:07 PM
bugeater (Marty)
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Eta Carinae

So this probably counts as my first astro photo through a scope. At least the first one I've processed. Picked it because it was high in the sky, plus should be a pretty simple target.

About 8 x 30 second exposures, Canon 700D DSLR, 8" f/5 newt. Light pollution is reasonably bad, plus I get a bit of star trailing with over 30 second exposures, so I'm not sure if that's normal if unguided or my polar alignment was a bit off. I'm reasonably happy with it, though clearly there is a way to go.
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Old 23-03-2015, 02:26 AM
raymo
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Nice job Marty, but it is very red, so I assume that either your Canon is modded, or you processed it deliberately to highlight the red.
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Old 23-03-2015, 08:18 AM
bugeater (Marty)
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No, the camera isn't modded. The red came out when playing with the curves. Does seem a bit overdone.
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Old 23-03-2015, 11:40 AM
raymo
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If it's cloudy it'll give you something to do. If you move the nebula out of view you can see that the whole frame has a reddish tinge. Get rid of that, and you'll have a very nice image.
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Old 23-03-2015, 01:41 PM
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rustigsmed (Russell)
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hi marty,

nice effort. I agree its a bit too red. maybe have another crack at it. if using photoshop perhaps choose 'autocolour' first to help balance the red blue green.

cheers
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Old 23-03-2015, 08:58 PM
bugeater (Marty)
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Yeah the red channel was quite shifted to the right compared to the others in the original data. My processing enhanced it too. Anyway, I found I'd done a bunch more longer exposures, so I've stacked them all, used an auto colour balance as suggested and have played with curves to tease out some of the detail. I think it looks considerably better. Plus it makes me want to get out and collect more data - damn clouds!
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Old 23-03-2015, 09:56 PM
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rustigsmed (Russell)
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Much better
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Old 24-03-2015, 01:49 AM
raymo
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that's more like it.
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Old 24-03-2015, 08:21 AM
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multiweb (Marc)
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Nicely done. Very tidy.
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Old 24-03-2015, 02:42 PM
kosh
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Marty, for a first try that's not too shabby!
Building up from simpler targets is probably a good way to go about it. Onwards and upwards!
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Old 24-03-2015, 03:17 PM
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BruceG (Bruce)
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Whoa that that last process certainly made a huge difference. I'm learning as well. I try to get an idea of what others have done with similar spec gear and take particular note if the camera was stock or modified by removal of the IR filter. After seeing a fair few, you now the kind of balance you are chasing. Great work though - I bet you feel like you have achieved something special (and you have).
Enjoy!
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