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.
ZWO ASI1600MC-C on a Stellarvue SV70T. 38x30 sec exposures. 30 darks and 30 bias frames. No flats- I had intended to take them the morning after capture, but woke up to an unexpected rain shower and had to drag everything in. Stacked with median integrate and Sigma outlier rejection. I just played around with the sliders after that to add saturation. Used 20% BG, 3 Sigma, 0 base.
Really Nice Scott 😉
Did you try the "remove light pollution" tool and/or the "calibrate background" tool?
Mabula
Really Nice Scott 😉
Did you try the "remove light pollution" tool and/or the "calibrate background" tool?
Mabula
I did do the background calibration, but not light pollution. I redid the background calibration and liked the results with a second pass and tried the light pollution tool with good results. I still cannot get the vignette removal to work well- I think there is just too much nebulosity in the picture to get enough areas without it to make it work. I am looking forward to after the full moon to try and get some data on the eastern and western Veil to see how that will look. Hopefully then I will also be able to get some flats.
