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Peter,
Just so you get an understanding of the File Groups in DSS
There are 2 Groups
1/ Main Group
2/ Group 1 and onwards
Light frames in the Main Group are only associated with the Flats and Bias frames in the Main Group
Flats and / or Bias frames in the Main Group are only associated with Light frames in Group 1 onwards
Flats and / or Bias frames from Group 1 and onwards are only associated with Light frames from same group
So in other words, Flats and or Bias placed in Main Group will calibrate with Light frames placed in Main Group or Group 1 or Group 2 and so on …,
You can’t place Light frames in Main Group and Flats or Bias in Group 1 or Group 2 and so on …. and expect them to calibrate, they won’t
That’s why the safest way to load your files is -
Night 1 only, load Lights , Flats and Bias into Main Group
Nights 1 and 2 ( camera removed ) load Lights , Flats and Bias night 1 into Main Group and load Lights , Flats and Bias night 2 into Group 1
Nights 1 and 2 ( camera not touched ) load night 1 Flats and Bias into Main Group , load Lights night 1 into Group 1 and Lights night 2 to Group 2 ( no need for night 2 Flats or Bias as Main Group night 1 Flats and Bias are common to Groups 1 and 2 Lights )
Hope the above makes sense
Cheers
Martin
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