flat field overcorr...
 
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flat field overcorrection

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(@astrogee)
Black Hole
Joined: 8 years ago
Posts: 234
Topic starter  

These flats have been working nicely but now on this set of lights they are overcorrecting. Also, it seems to be more extreme with the foggier images at the end of the session. Do I just have bad flats?

Here is a screenshot showing the first and last images of the session:

Screen Shot 2018 12 13 at 7.28.44 PM

Here is a screenshot showing the first two (stacked) lights corrected:

Screen Shot 2018 12 11 at 8.56.13 PM

Here is a screenshot showing the last two (stacked) lights corrected:

Screen Shot 2018 12 13 at 7.39.47 PM

And here is a screenshot showing all 33 lights corrected:

Screen Shot 2018 12 13 at 7.29.03 PM


   
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