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 trying to integrate multiple sessions and was having trouble recently. I had a previous topic about this and it was resolved. I have been able to integrate my 120s sessions with my 300s session successfully.
Now when I do ha & oiii extract I also integrate the sessions of 120s & 300s successfully. When I try to run a HOO or SHO combination it tell me that I cannot as the images aren’t the same size.
I can see this in the info on app where it gives me the pixel dimensions. This is a bit odd since I’m using the same camera and scope. 294mc pro and William Optics gt71.
Any idea as to why this is happening? Thank you!
@garycphoto Hi,
There usually is some drift or dithering during the night which results into a slight shift of the target in the lights. APP aligns the lights resulting in a larger image than the size of a single light. The size difference depends on how much the target wanders and usually is different on different nights. That explains why the 120 sec and 300 sec integrations have different sizes.
Just load the integration results as lights (no calibration data), go to tab 4 and register them against each other. That will make APP align the images and give them the same dimensions. You can then save the registered frames at the bottom of tab 4 and load those into combine rgb.
HTH, Wouter
@wvreeven Thanks for the quick response Wouter. I’ll try that for sure.
