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 All,
this is my first problem after stacking. 4 Pics before Meridian Flip, 24 after Meridian Flip. APP does not rotate the pics automatically. So far i never had the problem. What I am doing wrong?
Greetings and a nice Sunday...
André
Looks to me that they are rotated in respect to the object itself or am I mistaken... Your sensor flipped and thus now has the amp-glow showing on the other side. You need to take that out with darks.
Thanks for your answer.
So, the sensor was not rotated. Why should I do that? I made Darks. Unfortunately wrong time chosen.
If I remove the first 4 images, the stacking works.
They are darks with 300 seconds. But the lights have 600 seconds. I create new darks with 600 sec
It's not the first time in 2 years that I've stacked images where a meridien flip was needed. I don't know where the problem is 😪
Yes, but when you perform a flip, your camera flips as well. So that's what I meant with "the sensor flips". I think the image is processed ok, you just have the issue of amp-glow showing up on the other side.
