BPM clarification
 
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June 24 2026 APP 2.0.0-beta46 has been released !

Improved internal memory configuration (lower ! memory usage), fixed beta45 startup issue, fixed Set Save Directory & 2-panel mosaics.

May 27 2026 APP 2.0.0-beta45 has been released !

Fully Multi-Threaded LNC, many improvements for the registration engine, platform upgrade, and further tuning of internal memory consumption and memory release back to OS.

Apr 14 2026: Google Pay, Apple Pay & WeChat Pay added as payment options

Update on the 2.0.0 release & the full manual

We are getting close to the 2.0.0 stable release and the full manual. The manual will soon become available on the website and also in PDF format. Both versions will be identical and once released, will start to follow the APP release cycle and thus will stay up-to-date to the latest APP version.

Once 2.0.0 is released, the price for APP will increase. Owner's license holders will not need to pay an upgrade fee to use 2.0.0, neither do Renter's license holders.

 

BPM clarification

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(@nitesky)
Main Sequence Star
Joined: 8 years ago
Posts: 12
Topic starter  

Great software and I love the easy workflow. I do have a question though on creating a BPM. I was looking at Mabula's BPM tutorial on creating them and he mentioned using the same BPM for several months.  Darks are used and they would be good for months. Both Mabula and Sara Wager say to also load your flats. Are you referring to dark/flats because flats are by filter and in many cases by session? 

To complicate my confusion, I watched the tutorial on using Deigo's data in a multi-filter to create the Trifid. There weren't any dark/flats only darks, bias, flats (per channel).  I don't do dark removed link So, would I load just darks or darks and bias?


This topic was modified 8 years ago by nitesky

   
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(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 

A BPM is best made using super long darks (like 10-15 min or so per sub), bias and flats. APP takes the relevant data out of those and creates a calibration map that should remain the same for a long time (for your particular camera). Here's a nice video tutorial about creating one and in there luminance flats are used.



   
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(@nitesky)
Main Sequence Star
Joined: 8 years ago
Posts: 12
Topic starter  

Thanks, Vincent.  Reviewing Sara's video again, it looks like I should be able to use my 300 second darks and my Lum flats. She didn't load bias for her tutorial but guess I'll load them in any way and give it another try.



   
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(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 

Yes I would do that, should be a pretty good BPM with those subs you already have.



   
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(@maxthebuilder)
Red Giant
Joined: 8 years ago
Posts: 46
 

Hello,

If I use long darks for BPM I get some amp glow remnants. That is for ASI294MC which has a pretty strong amp glow.



   
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(@wvreeven)
Quasar
Joined: 8 years ago
Posts: 2134
 

Hi Max,

Indeed this can happen. Please play with the Hot Pixels Kappa in tab 2 under BadPixelMap and lower that to see if this reduces the amp glow in the BPM.

 

Wouter



   
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