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've been trying to stack data from two different cameras for over a day now, however, I can't get past registration. Usually, it will only register 95 or 104 out of 189 subs (and all from one camera). I tried mosaic mode as a last resort, but it just takes about 6-7 hours (on a year-old gaming computer) to get about 80% of the way until it fails. It gives me this error message - I have no idea what it means.
Any help would be appreciated. Thanks in advance!
While I was able to build the image by stacking both datasets in DSS, outputting two .tiff files, changing the pixel scale and cropping to match the pixel array, and finally stacking the two tiff files together in DSS, I would still like to know how to fix this error message. The sole reason that I bought APP was in order to be able to stack raw data from two different setups together. So far, the program has been unable to do this for me.
Could you tell me what settings you used in trying to combine the datasets?
