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.
I think this is probably my best image so far. It's composed of about 300 or so Subs of mixed exposures and ISO, and add up to 12,480seconds These are over processed but I'm working on it.
Here I used the defaults in APP for stacking, then did the lpr,bc,and scc followed by saturation of 35 with threshold of 0.1. Imported into light room to saturate more, dehaze and adjust clarity followed by background and noise clean up in PS.Â
I think this is probably my best image so far. It's composed of about 300 or so Subs of mixed exposures and ISO, and add up to 12,480seconds These are over processed but I'm working on it.
Here I used the defaults in APP for stacking, then did the lpr,bc,and scc followed by saturation of 35 with threshold of 0.1. Imported into light room to saturate more, dehaze and adjust clarity followed by background and noise clean up in PS.Â
Canon 600D t3i, ES127 apo, iOptron q45P mount.
Hi Greg,
Nice result ! Lots of signal present 😉
If you are saving the data to process in another application or just for finishing up, I recommend to put the saturation threshold value to 0.2 or 0.25, that will prevent injecting chromatic noise into your sky background 😉 while still adding saturation to the nebula and stars.
