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.
Calibrating images used to be quite straight forward, but today I can't. I have double and triple checked the images (MDF, MD etc) and they are OK and placed correctly. (About 100 SHO images). The calibration routine runs in a few seconds, but when I look at the calibrated images they are completely black. That is, I can see a few bright points which I assume are remaining bright pixels. There are 27 - 29 in each image.
I have reinstalled APP, reset all settings to no avail. It does not work.
Any help or tip appreciated.
Helge
Hi Helge @heno,
If the calibrated images are completely black, then the cause is very likely that the sensor offset (bias pedestal) in your lights was way lower than in your darks? So if the darks subtract from the lights, they will subtract way too much.
Could that explain it?Â
If you want, I can have a look at the data for you.Â
Please upload it here :
https://upload.astropixelprocessor.com/
username: uploadData
password:uploadTestData
Please make a folder with your name and issue like : Helge-Calibration-isssue
and let me know once uploaded 😉
Mabula
Hi Mabula
I always image with offset 50 and gain 100. I never change this, at least not on purpose.
I have uploaded 3 image files, 3 MF and 1 MD to Helge-Calibration_issue.
I tried again today before I uploaded and had the same result.Â
I also ran the same set of files in PixInsight WBPP script. No problem what so ever. I really don't understand what is going on here.
Helge
Hi Helge @heno,
Thank you very much for your upload, I just checked, we have received the data properly. I will look at it tomorrow and will try to find an explanation.
Oh, can you share with me which APP version you are/were using ? Was it the latest 2.0.0-beta39 or an older version?
Mabula
Hi Helge @heno,
I have analysed your data, all is fine when I try it. I can not see that there is something wrong here.
I have tried with 2.0.0-beta40 (work in progress) it is the same as 2.0.0-beta39 in terms of the data calibration engine. I also created a proper Bad Pixel Map using your masterflats and masterdark.
Please see the attached screenshots:
Could it be that your images were black because the preview filter was set to no stretch (data as is) ? I can not think of another reason at the moment for your issue.
One thing to note, to make sure that you masterflats are assigned properly, you need to properly assing the filters when loading them. If you use the fits header, they will not be matched properly because the H-alpha lights have filter tag Ha and the masterflat has tag Hydrogen-alpha.
Mabula
@mabula-adminÂ
Thanks for your effort in checking. I am running beta 39. The result you are getting is what I was expecting to see. I will run it again one of these days and check the stretch setting.
Also thanks for the tip regarding Ha/Hydrogen-alpha. I'll keep that in mind. 😉Â
Helge
