Does the master fla...
 
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2022-09-02: APP 2.0.0-beta4 has been released !

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windows 2.0.0-beta4

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Does the master flat contain the dark flat info?


(@jkstrgzrapp)
Molecular Cloud Customer
Joined: 3 months ago
Posts: 4
Topic starter  

Getting some nice results thus far with APP. 
Do I need to load MDF’s with MF’s that have been generated originally with dark flats? I notice the MDF’s (mono cam, each channel) are dark grey when loaded, even if I assign to a channel. All other masters are colored to indicate they are assigned to a particular channel. Searching I found this from Mabula years ago (likely before there was a tab to load MDF’s)…

“So for calibration of the lights, the masterdarkflat is not to be used. Make sure the lights are calibrated with a masterdark (or masterbias) for the lights, the masterflat and possibly a BPM”

Thanks in advance for clarification.


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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4987
 

Not 100% sure what you mean, but the MF is created using a master darkflat. It's basically just a bias that is used to correct the flats with. Flats usually are about 1-2 seconds of exposure and can have a different gain etc, to which the darkflats need to be adjusted to. Darkflats are only used for the creation of a master flat, nothing more.


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(@jkstrgzrapp)
Molecular Cloud Customer
Joined: 3 months ago
Posts: 4
Topic starter  

Sorry if my question is not clear.

There is a tab to load master Dark flats, but if I understand correctly I do not need to load these if my master flats were generated with corresponding dark flats previously?

If so, what is the purpose of a tab to load master Dark flats if I previously created a master flat (created with dark flats). Appears I just need to load the master flat and not the master Dark flat for future calibrations if I understand. 


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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4987
 

The button is there to be able to re-use the created master darkflat. If you take flats again and the settings of those are the same, you can just reload that darkflat.


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(@jkstrgzrapp)
Molecular Cloud Customer
Joined: 3 months ago
Posts: 4
Topic starter  

Thanks, I understand now.


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