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 downloaded APP earlier today and have been very impressed. I have an ASI-1600mm - cool and many users have had a bad experience with the BIAS frames it produces and have switched to using Dark Flats instead. I was wondering if APP can handle dark flats and if so how? There isn't a separate tab to load them. Thanks again - APP looks great!
Hi Tim, thank you for the nice compliment.
Yes, APP can certainly handle dark flats (I use it myself with both DLSR and ASI1600 😉 ). They should be treated as darks for your flats.
So just load the dark flats for your flat calibration as darks. Make sure you use the same exposure time as your flats. If your flats have different exposure times (some photographers have this with ACP capture for instance) then increase the exposure tolerance for the master dark. This is a percentage.
Let me know if this works for you.
Kind regards,
Mabula
Thanks Mabula, I finally got around to processing an image with dark flats. I loaded the dark flats with the flats during the calibration phase. The individual flat frames showed a D beside them indicating - I think - that they were treated as darks for the flats. However, APP also produced a master Dark Flat as well as a master flat. So, does the master flat already have the dark flat data included or do I use both the master flat and the master dark flat for the next phase?
Hi Tim,
Yes, the D next to the flats indicate that a master dark flat is subtracted in the creation of the master flat. So the master flat has the master dark flat already subtracted.
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 😉
Kind regards,
Mabula
