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Re: [APML] Sword in the mist - my deepest yet
Hey Chris,
--- Chris Schur <cschur@therim.com> wrote:
> http://www.schursastrophotography.com/filmimagepages/sword1.html
That certainly is deep, wonderful acquistion. Can you explain the red
rings around the stars? Is that from 'pumping up' the reds? I see that
on many of my shots and want to know how to get rid of them. I suppose
other candidate causes could be; focus shift or optics out of
collimation.
Alan
=====
SCT Astrophotography: http://www.pbase.com/avoetsch/astrophotography
FS-102 G-11/Gemini: http://www.pbase.com/avoetsch12952/tak_fs102
& http://www.pbase.com/avoetsch12952/fs102
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