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.
Hello,
I found different hints for this. I stacked RGB and H-alpha seperatley. RGB normal and H-alpha set under "0" to a-alpha, which worked well, saw a nice black&white stack. Then I tried to combine these with the combining tool under 9, combining RGB. That did not work since not the right dimensions etc. Registration of both these files failed too, with multi-sezzion where I once said that one is h-alpha, the other rgb. the error was unspecific under part 5.
so how do I comebine these two files from different sezzions but with same camera (D810A) and optics (400mm f/2.8)? This should be possible in tools, combining rgb, right?
the 2 files can be found here:
regards,
stefan
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They should be registered first, but it is definitely possible as Mabula has combined data of 1 object coming from wildly different setups. I'll have a look at the files, might be the fastest.
Ok, I tried a few times, but can't get the data properly down. Are you able to share it via wetransfer.com? Use my address; vincent@astropixelprocessor.com
Ok, I tried a few times, but can't get the data properly down. Are you able to share it via wetransfer.com? Use my address; vincent@astropixelprocessor.com
am trying, but it seems that wetransfer.com is currently down, nothing works 0 bytes in >5min. my cloud has worked since years, though, strange...Â
Here is the error:
I registered in dropbox, hope this works
Ah that's our infamous general java error again, might be related to something else (@mabula-admin). Anyway, downloading your files and will give it a go. If this java error keeps bugging you, Mabula needs to take a look at it. Which should be possible if he has gotten through his email. 🙂
Hi again, so I had no problem registering the frames (which are not overlapping very well), but did get a java error (my first one) during normalization. I notified Mabula to take a look at it as it seems this data reveals a repeatable error which is great for bug fixing.
To get around it I only registered the frames, then clicked "save registered frames" and immediately went for the combine tool. I used 100% of the Halpha in the red channel, did LP correction and color calibration. Looks pretty nice now to me. So, hopefully Mabula can get these errors out and a tip for the future would be to make sure the panels are aligning better, I now had to crop the final picture quite a lot.
Right click and choose to open in a new tab for full view.
thanx vincent, will try that soon. that was a test of h-alpha last night in nam. so yes, bad me no good overlap
that is my second combinded pic ever, first was no good, now this looks ok to me

