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 APP Team
I was trying to calibrate subs from last night and came across this unusual :
First, my camera is the ASI294MM Pro and the subs were taken at gain 121/30 -10°C with 300sec exposure time.
Most likely this is a camera problem rather then APP not doing it's job. But I am curious if any of the members have seen such behavior in the past.
The first image is from a second target taken in OIII last night showing the "regular" amp glow I would expect. Second image is the one I have problems with calibrating. The amp glow is much fainter in this sub as much it was taken with same settings and filter.
Here below is the outcome after calibration. The amp glow is still visible. The entire image actually looks like not touched at all.
Interestingly, as much the second target was taken at a slightly different rotation angle (first image) the MD, MDF and MF of the target in question, take care of the amp glow in that sub.
Should I just reshoot all the OIII subs or are there any remedies to save them? And has anyone had similar problems with ZWO cameras.
Thank you in advance
Georg
I wanted to follow up and let you know that the problem was located. It was found between computer's keyboard and chair.... ME!!!
As suspected, it was on the camera side and some of the subs were mistakenly taken in Bin1 instead of Bin2. The file name is so long that it was hidden out of site in the APP window.
Clear skies
Georg
