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 from Austria!
I'm having a problem calibrating my data. On my last project I shot lights with a Canon Ra connected to an ASIair. The data was saved as FITS. I was only able to record the calibration data in the camera's CR3 format.
In APP I can create the masters without any problems, but they don't correct the lights.
If I switch from "raw" to "calibrated" in the window, nothing changes even though I have assigned the masters to the lights!?
Can't FITS be calibrated with CR3?
CS Gernot
Hi Gernot @skanker,
That is a problem yes that has to do with image dimensions in both the FITS and CR3 format. They will probably be different and this is because AsiAir is cutting of the raw border of the CR3 data and putting that in the FITS files for capture. And the resulting FITS files will have smaller dimensions then the CR3 raws which still contain the raw border. Without knowing the cropping offsets that asiair does internally, we can not solve nor fix this. If you know the offsets, then we can fix this with the batch crop tool to make the images compatible and have calibration working on the correct pixels in the lights.
As a general rule it is good to keep in mind : always shoot calibration data in the same file format with the same software and same software version as your lights to prevent unexpected results.
Mabula
Hi Mabula!
Thanks for the explanation. I was able to immediately identify the problem with the image sizes in the APP. Unfortunately, due to a technical glitch, I was unable to record the calibration files after the session. I will now try to create the data retrospectively with the ASIair. Please keep your fingers crossed for me 🙂
Greetings from Austria
Gernot
