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 Admin,
I have used a Bad pixel map for my DSLR as a super calibration frame. I made it around a year ago by integrating approx 8 hours of 5min subs at room temperature. It still works great. and since then I never used dark frames. Only BMP, Flats, and Master Bias.
Recently, I have switched to ASI 1600MM GT (mono) camera. I want to know if making BPM for a cooled mono cam works as it worked for my DSLR. What would be the best way to make it if it works and provides an advantage (along with the dark frames library)? Do i need to use master dark too?
Is the BPM sensor temperature dependent? if yes, then which temperature should I choose? I usually image at -10 degree C sensor temperature. Should I make it at ambient temperature without cooling? and the same for Flat frames (Temperature, filter, etc)Â
I really appreciate any help you can provide.
The BPM is independent of camera settings, including temperature. It's a map of the characteristics of your sensor and the best way to create a good one is to use a few long, uncooled darks. You can indeed just use a BPM, but only if you don't have amp-glow. If you have amp-glow, darks are still vital.
Thanks for the reply. Yes, my camers has amp glow so i would definitely need master dark. But i would make a Good BPM by shooting darks as worst as possible 😅😅 such as ambiannt temperature and high gain.
Thanks again
