2nd LRGB - Failed! So went for RGB as consolation

[bobro]

For my 2nd attempt at LRGB imaging I tried the Eastern Veil nebula, capturing (2 min subs) 2.5 hours of L and 40min each of RGB. My attempts at processing only produced noisy images that were not sharp - I wondered what was wrong.

Last night was clear (much better than recent nights it seems) - 1 hour of Blue only capture plus better darks produced a much cleaner and sharper Blue image with much less noise than before.  So, after a bit of comparison, I scrapped the previous 2.5 hours of L and most of the previous Blue subs, leaving 1 Hour of Blue and 40 min each of the previous Red and Green to try and put together an image.  The resulting image has a different colour balance in the lower right corner in particular - perhaps down to the less than clear skies for the Red and Green capture?

Seems a very blue image, so must need some re-balancing.

At least something came out of it - especially realising there's no substitute for dark clear skies!

[Adam J]

18 hours ago, bobro said:

For my 2nd attempt at LRGB imaging I tried the Eastern Veil nebula, capturing (2 min subs) 2.5 hours of L and 40min each of RGB. My attempts at processing only produced noisy images that were not sharp - I wondered what was wrong.

Last night was clear (much better than recent nights it seems) - 1 hour of Blue only capture plus better darks produced a much cleaner and sharper Blue image with much less noise than before.  So, after a bit of comparison, I scrapped the previous 2.5 hours of L and most of the previous Blue subs, leaving 1 Hour of Blue and 40 min each of the previous Red and Green to try and put together an image.  The resulting image has a different colour balance in the lower right corner in particular - perhaps down to the less than clear skies for the Red and Green capture?

Seems a very blue image, so must need some re-balancing.

At least something came out of it - especially realising there's no substitute for dark clear skies!

Its not dark enough for RGB imaging at the moment, also its very warm weather for an un-cooled camera in mid summer. Things will improve for you greatly once the weather gets cooler and the nights longer. I would got for some Ha and OIII narrow band in this image.