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 tried the long awaited feature to process DNG files from my Pentax K5 DSLR with APP 1.075 beta6, but anytime i got an Division by Zero Exception in the module MedianDPAapproachFilterDouble. The exception occurs in the calibrate module when processing darks and bias files and also in the star analyse module when processing lights.
kind regards from Düsseldorf/Germany
Heiner
Dear Heiner @djones,
Thank you for sharing this issue.
Chances are the error is not related to APP's ability to process Adobe DNG frames, but due to an issue with your data. I did test the DNG conversion on a lot of Pentax camera models successfully.
I will be happy to sort this out quickly and have a look at your data. Can you upload the data that gives the problem including calibration data?
Which Adobe DNG converter version did you use? The most recent one?
You can upload the data here:
https://ariesprodstor.astropixelprocessor.com:7001/
login and password : appuser
Make a directory with your name and upload some frames and I will have a look.
Thanks,
Mabula
Hi Mabula,
thanks for your prompt response. As proposed i uploaded some sample pictures to your file station. These dng files came native from my Pentax K5. With Pentax there is no need for Adobe DNG Converter.
Hope, you can fix this
Kind regards
Heiner
Hi Heiner @djones,
Thank you very much for uploading your Pentax frames 😉
Indeed, there was an issue with the metadata that the Pentax camera stored in the DNG metadata. It's a bit different from how Adobe DNG converter would do it. But luckily, it was a minor issue, so I have fixed it and it will work in APP 1.075 which I will release tomorrow !
Kind regards,
Mabula
