2026-10-09 APP 2.0.0-beta48 has been released !
This is mainly a bug fix release for the reported bugs in beta47. In addition it has a significant User Interface performance improvement noticable when you need to process 1000s of images in APP.
2026-10-03 APP 2.0.0-beta47 has been released !
This is a very big release... many code optimizations/rewrites, many parts of APP are much faster and more precise, especially star analysis and registration are much faster ! Big mosaics will go much faster 🙂
And we introduce a new preview filter, which includes the new Adaptive Deep Sky Stretch and a General Levels Stretch, this has been long over due. The old preview filter (the panel on the right side to stretch and preview your data) has not been updated for a couple of years and it is a critical part of any APP session.
Adaptive Deep Sky Stretch or ADSS is a much more intuitive stretch algorithm. It is also color preserving (which is a great new addition in itself ! ) which means that the highlights are no longer bleached, color is maintained from the linear data while stretching. You can simply stretch your data using the sky background level and signal width sliders which work much easier and more intuitive. You no longer need to fiddle with the old complicated sliders with zoom buttons. All the zoom buttons for the sliders are made redundant. And you can enter slider values in the slider value fields yourself. I will make a youtube video in the coming days to explain and fully introduce ADSS. Once the video is ready, it will be highlighted on the forum.
RGB Combine upgrade !. The RGB Combine Tool has been rewritten mostly. The tool is faster and easier to use and most importantly, the Luminance slider to inject a luminance channel or channels into the RGB composite is now working correctly. It no longer bleaches the RGB colors. Combined with the new ADSS preview, you will get much better and easier great composites with great color! I will also explain this in a new youtube video.
I imaged two galaxy targets 3 nights ago; same optics, filter, etc. One integrates beautifully; the other gives me a circular image. I've Blinked the subs in Pix and don't see any abnormalities. I've reset all the parameters from 0 to 6...same weird result.
I was able to image same again 2 nights ago. It integrated perfectly. Then I combined the data from the night before and got a circular image again. I then started integrating 2 subs at a time from the weird dataset and got the circular image no matter what I integrated...guess I'll just throw out the set. 🤪 -john
oh boy, did you use a round telescope instead of a square one? 😂
No kidding: I have had the same in 1 occasion. It was solved by either switching off dynamic distortion correction or same camera and optics. Don’t know why, but it worked….
Hi John @favalessa,
Ah I already answered in the duplicate topic, I will delete the other one. Indeed, dynamic distortion correction needs to be disabled here. Thanks @michel82 for helping out here.
"This problem can occur if you enable dynamic distortion correction in 4) Register, if your data really does not need it. So please disable it in 4) Register and try again and let me know if all is okay now 
On our issue list, this issue is noted to be fixed as well."
Mabula
@mabula-admin Yes all is well when I disabled dynamic distortion correction. I did reset all 1 to 6 to defaults in my testing, but that must have not been disabled. I just checked and it does get disabled when I reset 1 to 6. not sure why it didn't before...I don't remember ever enabling it. I so appreciate your efforts and that I took your time with this. I did create a duplicate of my post as it wasn't showing up after a day...I think I didn't "confirm" soon enough via the confirmation email. -john
Hi John @favalessa,
No problem, I am glad all is okay now 😉 we will fix the issue going forward with dynamic distortion correction.
Mabula
