Mar 28 2026 APP 2.0.0-beta40 will be released in 7 days.
It did take a long time to have the work finished on this and it will have a major performance boost of 30-50% over 2.0.0-beta39 from calibration to integration. We extensively optimized many critical parts of APP. All has been tested to guarantee correct optimizations. Drizzle and image resampling is much faster for instance, those modules have been completely rewritten. Much less memory usage. LNC 2.0 will be released which works much better and faster than LNC in it's current state. And more, all will be added to the release notes in the coming weeks...
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.
I use a CMOS camera and try to use matched darks to all my lights - no scaling. I do however want to scale my flat darks as I don’t want to be taking matched dark frames for my flats all the time. When I load biases though I don’t seem to have the option to apply them just to the darks I want to use for flats. Is there a way to do this in APP? Should I just choose scale flat darks and not choose scale darks?
wayne
Hi Wayne @whixson,
Please check this question
with the answer:
My adivce would be to create 1 MasterDarkFlat with a suitable exposure time with respect to the mean exposure time of all of our flats. And then apply dark scaling on the masterdarkflat. To be able to do this, you will need to add a suitable Masterbias as well, because scaling can only be done on the dark current signal and noise, so the bias signal must be known.
Now, since a real bias of the asi1600mm-pro (real being, a bias shot with the shortest exposure time possible) is not good. I advice you to create a Masterbias with a bit longer exposure time. Use 0.1 seconds instead of 0.001 seconds. The resulting Masterbias will be better and it will hardly be affected by dark current since this is stil a very short exposure time.
In 2) calibrate, you can enable darkflat scaling. Check the integration options for a MasterDarkFlat.
Let me know if this helps to get it done in the way you want. It should be possible without problems.
Mabula
