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.
I'm doing some processing of M16 and I have some god awful noise in the picture, which is something i have noticed at more than one target, so i must be doing something wrong.
I am dithering, shooting at -10 with my zwo533 and in this picture i have 50 subs. And I have darks and all.
It is also sessions from 2 different nights. Night 1 in session 1, night 2 in session 2. All shot with the L-extreme.
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Yes, unfortunately noise will always be part of the game. The only way to get rid of that nicely (and even then it won't be gone) is to have a lot of data and long exposures. What's your exposure time here?
Other than that, noise reduction tools would help, APP is going to have that in the future as well, but personally I almost never use it. I just accepted it and removing it usually hurts details.
I think I found the sinner, I didn't check me subs so like 60% of them was crap. This is the final result. Subs were 180s
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Mm, contrast on this one is much higher than the first picture, so I wonder if it's really gone in the background?
It was much better when i excluded the bad data. This picture is also posted
Anders, just wanted to tell you, this is a great image!
