Thread: Galaxy NGC 4945
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Old 29-05-2013, 07:53 PM
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rogerg (Roger)
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Quote:
Originally Posted by naskies View Post
Nice work, Roger - I'm very jealous of your new "remote" set up I'm a big fan of this galaxy too.

What altitude were your blue exposures shot at? I know that some people shoot correspondingly longer B exposures to account for attenuation, while others will wait for the object to rise to a higher altitude (i.e. shoot a sequence such as R R G G B B B B G G R R during the night to maximise the altitude of B subs, if that makes sense).
Thanks Dave. That's an interesting idea shooting at different altitudes! These were all taken at about the same altitude as it happens. I typically started an hour or two before it crossed the meridian and finished an hour or two after it crossed the meridian.

PS. The challenge with such a setup is using it to it's full potential and not feeling like the wonderful resource is being wasted.
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