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 itĀ 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.
Hi Mabula/Vincent,
I have a small number of Ha and OIII frames captured with iTelescope.
I successfully integrated these frames using v1.076 Beta 3 but have tried them again using Beta 4 to see how they would turn out using your HOO combine presets.
However in Beta 4, APP does not seem able to find an reach a successful conclusion during Registration.Ā The progress bar reaches c 50% repeatedly but then seems to restart.Ā Ā I have allowed the process to run for quite some while without it reaching a successful conclusion.Ā I don't recall seeing this when I first processed the images in Beta 3.
I am about to try uploading the relevant subs to your server.
Regards
Mike
PS I have just tried processing the subs in 1.076 final with the same outcome as Beta 4.Ā Ā
Hi Mike @mestutters,
Please upload those frames as soon as you can and I will have a look š
In bet4 relative to beta3 nothing changed with respect to registration. What changed however is how the reference frame is chosen, maybe it works if you use another reference frame? I will test š
https://ariesprodstor.astropixelprocessor.com:7001/
username & password: appuser
Mabula
Hi Mabula,
The frames should now be available.Ā My recollection is that with Beta3 I had an error message that one of the frames failed to register.Ā I have not seen this when processing the subs with Beta 4.Ā Ā
On Calibration tab I set the cosmetic corrections check-boxes but otherwise used the default options during processing.
fyi I have loaded the integrated channels that I had previously from Beta 3 and processed these with Beta 4 RGB Combine presets HOO1 and HOO2.Ā Both worked fine but I am undecided at the moment which output I prefer.
Regards
Mike
Hi Mike @mestutters,
Thanks for uploading.
Yes I see the problem, the registration gets stuck in an endless loop, because of the new reference selector which is not working on this data. It tries to switch to another reference but no one works because of a data issue clearly.
What did you do with this data? Is it calibrated by iTelescope or did you do it? The data is full with bad pixel and bad columns still... do you have the original raws and calibration masters?
Mabula
Hi Mike @mestutters,
I have fixed the first issue with the reference frame switcher, It will first try the best H-alpha frame and then if that fails, it tries the best O3 frame as reference. This works correctly now:
Now, 3 frames, 2 Ha and 1 O3 aren't being registered. And something add is happening with the data. The data is flipped... this is very strange behaviour and MaximDL is reponsible, MaximDL has calibrated the data and is messing things up here...
Look at this, this is the reference:Ā
and this is one of the frames that can't be registered. The data is flipped in the Y-axis, left is right, right is left. This is not 180 degrees rotated as with a pier flip...
This is odd behaviour by MaximDL, if you can get the original raws and calibration masters, we should be able to get everything working and better š
Mabula
Hi Mike @mestutters,
Good news, registration will work if you:
- enable flip descriptors in X/Y
- disable same camera and optics
This is all due to MaximDL that is flipping the data ... (which it never should do if you ask me...)
(Oh, distortion margin can be kept at default allthough my screenshot shows a wider value which is needed...)
I will quickly release a new stable version with the fix for the reference switcher š
Ā
Mabula
Hi Mabula,
The images were captured about a week ago.Ā Thus farĀ I have downloaded only the calibrated frames.Ā I should still be able to download the calibration frames.Ā I will try to do this later today and upload the frames to your server.Ā Ā Ā Ā I had not noticed the flipped images until you pointed it out.
Mike
Ā
Hi Mike @mestutters,
APP 1.077 has been released especially to solve the never ending registration loop on this dataset š
Thanks for reporting the issue so quickly.
Mabula
Thats a great amazing jobe Mabula 😎Ā
I will have to study this weekend for the new version 1.077 and process my new project on M-42 😀Ā
Thanks for all
Best regards,
Hi Mabula,
First, thanks for investigating and fixing the looping Registration issue so promptly. Ā Also for spotting the flipped image issue that was preventing those threeĀ frames from Registering in Beta 3.Ā Ā I had not looked at them closely before and just assumed that they were of too poor quality to Register.Ā Ā Three frames out of 19 gives me c15% more photons to integrate!Ā
Looking at the results from 1.077 I am currently thinking that I prefer the teal coloration of M1 obtained by using the HOO1 preset compared with the bluer result of the HOO 2 preset.Ā However the star colouration of the HOO2 preset seems to me the more natural.Ā Ā I shall explore combining the two results in PS but overall a very pleasing outcome
Following up our dialogue from yesterday, I have uploaded the iTelescope Raw and calibration frames to your server.Ā Ā I thought that by just loading these files into APP, creating a BPM and then integrating the frames as I would subs from my own CCD that I might get a slightly better result.Ā Ā I was surprised however by the result of this approach which looks as if the MFs have been doubly applied:
By eye, I think I get the best result by deselecting the MD and MFs and just using BPM, MBĀ and cosmetic correction.Ā Do you know if Maxim is maybe doing something in the background to the Raws ?Ā How would you process these subs for best result?Ā Ā Perhaps it is best just to follow the Christan Sasse videos and simply load the iTelescope calibrated frames into APP and using just cosmetic correction for hot/cold pixels and columns.
Ā
Best Regards
Mike




