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.
Hi all, many thanks for reading 🤗 i have a question for all the OSC peeps out there. I am using a OSC 294mc-pro and for the first time im using a ZWO DUO NB filter. Ive never used a filter like this before and when i processed it as per no filter obviously ive got a very red image, turns out there is alot more too it than i anticipated, I have looked for some YT vids for a tutorial but i cant seem to find a really good one that starts at the beginning of this process. I only use APP and PS so could anyone please offer some help as to how i select the correct way to get the best from the NB captures. The ZWO utilizes Ha and Oiii i have read. I am quite new to all this so bear with me 😉 many thanks, Lee.
Could you try this workflow? https://www.astropixelprocessor.com/community/postid/7610/
You can skip the RGB processing steps in it if you only have mono.
Ooo thanks Vincent, i will take a good look at this workflow and report back 🙂
