[David Fitz-Henr]

Originally Posted by strongmanmike

Yeh looks like registration error to me not in your other images maybe your star saturation technique has just over emphasised the cyan in the glare you mention, hmm?. Anyway, lots of little galaxies in there huh?, great stuff. I noticed that ring galaxy too a little while ago with the Starfire, very cool

Mike

Originally Posted by RickS

Lovely image, David! The galaxy is fantastic. I did notice the same thing as Mike but it doesn't detract from the main subject.

Originally Posted by alpal

Hi David,
Excellent image - the best I've ever seen of this dim galaxy -
at about mag 10 it's a tough target.

Yes - the diffraction pattern seems a bit strange but who cares?

You give me motivation to do some more imaging.
Top work - well done.

cheers
Allan

Originally Posted by marc4darkskies

Beautiful David! Colour processing spot on. Screeds of detail - your trademark now! I love it!

Nit picking, I do find the magnitude of the "registration" problem a bit distracting but it looks like it would be a royal pain to try and process out since it appears to be inconsistent across the frame .

Cheers, Marcus

Thanks Mike, Rick, Allan & Marcus!
Actually, on looking more deeply I agree that it was a registration issue. What I said about the diffraction effects are true though, but mainly on the brighter stars (having taken red and blue on opposite sides of the meridian). Looking closely at the other stars I find there is a slight misalignment of the red channel; when I reran Registar and compared I found that the red channel was then properly aligned (must have been a hiccup in Registar the first time ). Oh well, I may reprocess at a later date.
This may turn out to be fortuitous though, as I have found another minor issue with Registar: The standard interpolation option (Bicubic) resulted in darker pixels in the star images that seem out of place (and would also cause minor colour issues). When I changed to Bilinear, the problem disappears (even though Registar recommends Bicubic)? See the attachment - the star on the left shows some darker pixels when using Bicubic in Registar. Can anyone shed some light on this?

Originally Posted by multiweb

That's an amazing field David. True to the bunyip. Unreal.

Thanks Marc!