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,
I've just started back doing some astrophotography having been absent for a while due to illness. In this time APP has changed a fair bit.
I've also moved from a DSLR to a ZWO Asi 1600MM and I'm in the process of creating a darks library. Having taken 100 images at each setting I now want to create master darks for each setting to use in the future.
Looking at APP I can open my 100 images and when I go to calibrate there is now a setting for automatic can I just use this to create my master darks or do I have to enter Average etc like I used to do.
Thanks
Doug
Automatic should work fine yes, rejection parameters and what algorithm to use is then set properly. Don't forget to select to create a BPM, which you can use regardless of the gain.
Automatic should work fine yes, rejection parameters and what algorithm to use is then set properly. Don't forget to select to create a BPM, which you can use regardless of the gain.
Hi Vincent,
Thanks for the reply.
I've not done a BPM at this time as I only have darks and I was waiting until I have some dark flats as I've read you should not use bias frames with the Asi 1600MM.
Having not used the Asi 1600 before when I make the BPM do I only have to make it once. I don't have to make one for each gain/offset.
Thanks
Doug
Sorry, just read your reply again and see that gain etc doesn't matter.
Doug
