This one is already on my to-do list after I've finished getting some more data on NGC7424. By the way things are going it should be 2024 before I have enough data from my backyard on that dim sucker to start imaging NGC55!
This one is already on my to-do list after I've finished getting some more data on NGC7424. By the way things are going it should be 2024 before I have enough data from my backyard on that dim sucker to start imaging NGC55!
Once again, a terrific image...
Mario
Yes 7424 is a pain as it barely shows up on my preview and needs a minimum of 5hrs luminance and will be eventually dragged out kicking and screaming.
Quote:
Originally Posted by alpal
Good work John - I like the red Ha areas.
I'd like to see the blue increased a little.
Yes I agree its needs to balance the red Ha, for some reason it seemed to get washed out a little.
Nearly perfect image. I would however reduce the background brightness a little by using a medium contrast in curves. It will give it that extra punch. On mu target list once the RC12 is up and running in the new observatory.
Yes I agree its needs to balance the red Ha, for some reason it seemed to get washed out a little.
John.
Hi John,
I hope you don't mind - I had a go with your image.
I changed the mode to LAB colour & increased the blue
& also did a mask to sharpen the brighter areas plus
I adjusted the curves.
What do you think?
Hi John,
I hope you don't mind - I had a go with your image.
I changed the mode to LAB colour & increased the blue
& also did a mask to sharpen the brighter areas plus
I adjusted the curves.
What do you think?
Well that has certainly lifted things, my processing tends to be more conservative but your version has lifted the blue colour in the galaxy nicely which it really needed. The background is noisier but you are dealing with a compressed jpeg.
Thanks John,
I suppose there are 1000 different ways you could process an image.
The LAB colour allows a boost of all colours which I did but yes
the background came out with some colour noise & was a little green.
A re-process starting from 32 bit FITS files taken straight off the stacks
would lift this image.
Hmm? I have looked at this a few times and was thinking you might post a repro actually, before I passed comment. If I can be honest, to me the galaxy looks basically red and white the excellent resolution is at your usual standard though, so, if you could get some colour variation back in, it would be a fabulous rendition of this galaxy
Thanks for suggestions, the image was clearly weak in colour, I distracted myself with the Ha addition.
I was out gathering more colour Ha data 'unbinned' just to help the colour and Ha inbetween the breeze, Moon and the mirror misting, which I have been processing.
The first process was too quickly done and binning the colour and Ha was probably a mistake. I really should have collected lots of blue same amount as luminance - unbinned! The Ha came out well even though it was binned possibly because it just provides colour not detail.
This is a big splendid galaxy which needs plenty of colour time.
the excellent resolution is at your usual standard though, so, if you could get some colour variation back in, it would be a fabulous rendition of this galaxy 
