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.
Shot the Cygnus loop with an ASI294MC Pro. 30 x 180 second subs in Oiii, Ha, Sii
ALL my subs contain images. I used Darks only at this point.
The Oiii processed just fine, providing a nice stacked image.
Started a new session with the Ha files and the stack ended up blank. Same thing happened with the Sii files.
Shut down APP and restarted and I get the same problem. The stacked integration in blank.
I have tried this a 3 separate integrations, and as one multichannel and I get the same results.
Any suggestions? Not sure what I could have ticked on/off.
Not sure, I'd have to look at the data in this case.
Please upload some of the relevant subs to our server;
Go to https://upload.astropixelprocessor.com and use upload1 as username and upload1 as password.
Create a directory named “bobw55-integrationissue” and upload in there. Thank you!
Done.....
Uploaded 3 of each sub(light) and the 3 final processed sets.
I'll download them shortly and will come back to it.
Ok, getting to it, could you point out to me which ones are Ha, OIII and SII? Thanks. 🙂 I think 2 = OIII, 3 = Ha, 4 = SII?
Sorry
the number just before GAIN is the filter # used.
2= OIII
3= H-Alpha
4= S-II
I should point out I was most recently playing with Drizzle settings to learn their affects.
Not sure if I have something set wrong there.
I didn't use drizzling here, just the standard settings. Could you try that first just to confirm it's working?
"IF" under tab 0, I set it to use:
Pattern= RGGB
Algorithm = What ever filter I used
and add in my darks, it does process, but I get a black and white image.
if Algorithm = Adaptive Airy Disc
Only the OIII will process and gives me a green image
the HA and SII give me the blanks I would expect red and green images from them to combine later
I had the pattern at "supported". All standard. Very strange this issue as with adaptive airy disc, I could also load the images and view them. Are you using APP 1.082 or later (just to be sure it's not old)?
Version 1.083
Will try again and leave things set at Supported and Airy disc
Very strange indeed, could you show me some screenshots of your settings in the tabs and of the right of the APP window with all stretch settings?
Looks like the histogram is indeed empty as the stretch values are just way too low. I'm really a bit struggling to understand this.
What happens when you click the green "GL4" button?
So not using darks gave a good result? If you switch on GL4 again and integrate without darks does that also work?
I didn't use any calibration data on your images as you didn't provide those and that worked. So it may be that there is an issue with your calibration data specifically then.
It only worked that one time.
Tried the same set again and it failed. {GL4 OFF)
Tried the other 2 with out darks and only the OIII would process.
Going to load APP on another computer and see what happens
Really sorry I can't help here, I have no issues with the same data so I'd also almost assume something is up at your machine. Do keep me updated with your test, would be good to know.
Tried it on another machine. same issues
Sooo weird. I'll ask Mabula to have a look at the data as well. Please upload the master dark and bias as well to the same directory so we can get a better picture.
Uploaded the master dark that APP produced, and the BPM from APP and 3 of the 21 darks I used.
Excellent, thank you! We'll have a closer look tomorrow.




