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,
when I try to load my flats with a MD file as a MasterDarkFlat (so same gain/temp/exposure as the flats) APP gives a error message that it can only calibrate with a dark with the same gain/temp/exposure.... However my MD is the same gain/temp/exp as the flats, so why can't I load them as a MDF? Does APP use a different algorithm for the MDF than for the MD? Or is there a way to use the same files?
Cheers,
Michel
A masterdark with the exposure length of a flat seems odd, flats are usually taken at about a second of exposure time, I guess you don’t need a MD that short? It should be possible to use as masterdarkflat, did you load them as dark flats?
@vincent-mod
my flats are 3sec (with flat panel). And I do have masterdarks with 3 secs. I did try to load it as a MDF but it will put it in the MasterDark folder instead.
