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.
Hi,Â
I wanted to give APP a try, and used it on the data from last weekend:Â http://www.salzgeber.at/astrophotography/deepsky/spring-is-here-galaxies-and-clusters/
My flats turned out unusable due to uneven lighting and moving dust, therefore I ended up with just lights and darks.
APP has a problem with finding stars in my images, it says I should lower the kappa value, but it is already at 3! The Regim Software by Andreas Roerig registered the images without any problem.
Exposures were 120s at f/8, ISO1600 with a Nikon D750
with best regards,
Philipp
Hi @astrograph,
Thank you for mentioning this and welcome to the forum 😉
That's odd to say the least. Does APP detect zero stars? Can you post a console output after having done star analysis on a couple of frames?
You can also send me 1 or 2 frames and I will have a look myself what's happening.
Mabula
Have you tried turning down the gamma slider and unchecking minimum amount of stars during analysis?
Hello,
apparently the issue was caused by something wrong with the bad pixel map, in the end I deleted all the calibration frames, startet from scratch without a BPM and then it worked.
During unsuccessful attempts at analysing stars I also had some Java Out Of Memory problems, so I increased the RAM setting to 4GB.
I uploaded two RAW frames and the calibration frames toÂ
Dropbox File (Private or Invalid)
if you want to have a look...
thanks,
Philipp
Â
BTW: today I created flat frames, which are missing some of the moving dust, but get rid of the vignetting...
