May 27 2026 APP 2.0.0-beta45 has been released !
Fully Multi-Threaded LNC, many improvements for the registration engine, platform upgrade, and further tuning of internal memory consumption and memory release back to OS.
Apr 14 2026: Google Pay, Apple Pay & WeChat Pay added as payment options
Update on the 2.0.0 release & the full manual
We are getting close to the 2.0.0 stable release and the full manual. The manual will soon become available on the website and also in PDF format. Both versions will be identical and once released, will start to follow the APP release cycle and thus will stay up-to-date to the latest APP version.
Once 2.0.0 is released, the price for APP will increase. Owner's license holders will not need to pay an upgrade fee to use 2.0.0, neither do Renter's license holders.
Hi, I have just started my Astrophotography journey. I have done a couple of nights imaging and now I am working on the processing after purchasing APP. I have successfully processed public data on APP before but am having issues with meh own FITS images. When I go to analyse stars I keep getting the message in my attached screenshot. I have tried taking more flats different gain etc but I can't seem to work our the channel error. I weans even aware I was using differing channels for the light and flats. I am using sharp cap for capturing on Windows bootcamp.
I will be very grateful for any help.
Thanks,
Anthony
It appears your lights are colour/CFA (3 channels = RGB), and your flats are mono?
Thank you so much for your feedback yes this was the issue and in hindsight seems like a very rookie error. Appreciate your help 🙏
OK so I took some flat frames in 3 channel and did the first project and it went fine. I then went to process some more images from the same session, using the same flats but I had the same issue as my OP. Thanks for your help.
Check Tab 0: RAW/FITS you have "Force CFA" always turned on when processing colour cams.
Somewhere along the lines it appears you're trying to process mono as colour, or colour as mono.
