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 have this error message since the new version. What can I do?
If I remove the flats and darks, this error message does not come. BIAS work alone.
This is with 1.077 right? And the exact same frames didn't cause an issue with 1.076 or 1.075?
Yes, that happened with the update to 1.077
I have now installed 1.075 again. Now I have the same error message here.
I'm testing other data, here is the same error message.
Obviously this error message comes from the Darks. Now I only used 30 of the 50 from the middle. And now it works 🙂
I uploaded the 50 darks here. Maybe this will help you find the mistake.
Dropbox File (Private or Invalid)
Ah great, yes it sometimes happens when calibration data has some issue. Might be worth for you to check the difference between the darks that didn't work and those that did, just to prevent it in the future. Thanks for uploading, can you pinpoint which frames caused the issue?
I looked through the darks one by one and saw no anomalies.
That error is indicative of a problem where you are calibrating data that incomaptible like monochrome data with Bayer CFA or 3-channel (RGB) Master frames or vice versa... check your data, if it's Bayer CFA data, have you enabled Force CFA in 0) RAW/FITS? Are all masters created as CFA masters?
Can you share frames of all types? Some lights, darks, flats, bias? I will make sure that it is solved.
Mabula
I am using the ASI 183 MC Pro. And I use these settings.
Today I tested it again with the exact same data. And now without an error message!
I don't know what yesterday was. I also installed APP on my laptop yesterday. And there I had the same error message.
But not anymore today 😀Â
