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 am using APP latest version on an iMac running Catalina. I captured Lights, Darks, Flats and Bias using APT with a Canon EOS60D that has been Astro Modified. No issues with this process and I loaded them all into APP and set it processing. I have had the same repeated error at every attempt, whether I run each process individually or just as a bulk Integration. The error appears during the Calibrate process. It flags up an error message each time APP creates the Master FITS file; MB, MD, BPM are all apparently created by APP but corrupt.
The message is 'This Fits file seems to be incomplete and/or corrupt !!!" and shows me the file string location of each file. I attach a screen grab below. I am unable to attach any of the faulty FITS files, too big. Any ideas please? PS: I just upgraded to Catalina and this is the first time i have run APP under this version. I also experienced the 'APP is not compatible with this OS' nonsense and had to force it to open from the settings/privacy panel.
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Just to update it appears that APP simply can't create any FITS files as part of the process and issues the same error at every attempt.Â
I have just run the whole process with the same files on a Windows10 machine and it worked perfectly.
Cancel everyone. I figured it out. Antivirus software was blocking it. It thinks that APP is Ransomware.
Excellent, I would never have guessed that as the problem. You're running an actual anti-virus program on OSX?
