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BPM questions


(@brendanc)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 33
Topic starter  

I've looked around for answers but not sure they're specific to my questions!

I'd like to create a BPM as best I can, but I'm unclear on several aspects.

Here we go:

  • Can I use any flats and darks? Or does it have to be specific to a project? If not specific, then is it better if I include a mix of calibration files from different projects?
  • Do I have to use darks, or can I use a bias instead?
  • Is it better to use as many calibration files as possible?
  • Can a BPM then be reused across all projects?

Thanks, Brendan


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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4690
 
  • You can use any flats and darks, but if you want to make a really good BPM a good idea would be to do this separately. With a longer exposed dark, no cooling etc. so you can produce the noisiest noise the sensor can make. 🙂
  • You do need a dark as a BPM is detecting hot- and cold-pixels
  • It's fine to use 1 dark, but make it a noisy one
  • A BPM can be used for the same camera for a long time yes, it's not destructive to your data. I'd day up to a year.

BrendanC liked
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(@brendanc)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 33
Topic starter  

And what's what we call brilliant moderation!

Thank you Vincent, this is perfect. Exactly what I needed. 🙂


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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4690
 

Thank you Brendan, that's appreciated! Hope it works. 🙂


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