Thanks for the tips.
I reduced the green bias and got rid of the main green halo around Alnitak.
I wonder if a bit of thin cloud came over when the green filter was going?
Also the Astrodon green filter is the worst one for reflection halos.
I think I am going to switch to Baader LRGB filters plus a clear one for Galaxies. I have some Astronomik type 2c filters as well for an Apogee U16M camera but they don't come with spacers and they are quite a bit thinner than other filters so I can't recommend them for that.
The setup was AP140 with Tak 4 inch flattener at F7, STL 11 class 2 with Astrodon filters on a Tak NJP mount at my dark site observatory. Taken about 4 months ago now.
The AP140 is an amazing scope. So incredibly sharp and zero absolutely zero colour. A real masterpiece of craftmanship.
Greg.
Quote:
Originally Posted by rpsastronomy
Greg,nice image great detail although i am not to sure on the green tinges to the image.
What setup did you use for this?
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