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Old 10-01-2014, 12:16 PM
kosh
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kosh is offline
 
Join Date: Sep 2005
Location: Melbourne
Posts: 331
Image error - any ideas?

Hi all,
Just having a go with the new 8" f4 newt last night at the flame horsehead region, and I have got this weird streak opposite of alnitak.
It almost looks like a reflection of its diffraction spikes. Also, I have this strange shape gradient on the bottom of the image, which also appears on another image (of the tarantula neb ) which is completely different part of the sky, but same place in the image. I'm not sure if they are the same thing or not.

The flame region is a stack of 11 x 180sec iso1600 on a 450D.
The Tarantula is a single image of 60secs at iso1600.
I still don't have the coma corrector either.

These problems may be common, but if someone can tell me what they might be I would love to hear it.

Thanks.
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