MAY 4 2026: APP 2.0.0-beta44 has been released !
New improved internal memory controls should now work on all computers
May 1 2026: APP 2.0.0-beta43 has been released !
Improved internal memory controls (much more stable and faster on big datasets), fixed CPU image viewer, fixed Narrowband extraction demosaic algortihms.
Apr 29 2026 APP 2.0.0-beta42 has been released !
New improved Normalization engine, Fixed random crashes in integration, fixed RGB Combine & Calibrate Star Colors, fixed Narrowband extraction algorithms, new development platform with performance gains, bug fixes in the tools, etc...
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.
Hello all,
I am trying my first process with APP. I loaded my lights and calibration frames. After step 2, master calibration files were created, however while viewing in l-calibrated mode, strong vignetting still shows and the image is basically displaying same as linear. Master flat seems to be created correctly and I see 'CA' showing in front of filenames, so I am assuming calibration frames are applied. See screenshots below. What am I missing?
Hi arash and welcome!
So just CA doesn’t mean they were calibrated with the flats, it seems they were not applied and the likely reason is because they are not compatible with the lights. They should be made with a proper bias or darkflat and have the exact same dimensions as the lights. Is that the case?
Thanks for the reply Vincent!
Lights were shot at ISO 400 and Fuji RAF dimensions are 6000x4000, but in APP in the dimension column for lights it shows '6000x4000 - 6048x4038' where on Master Calibration files (which was built by subs at ISO 400 and 6000x4000), dimension shows '6160x4032'. I'm not sure where the second set of numbers are coming from. See the screenshot.
 I did have subs with different ISOs on the first run, so on the second run I only selected 30s subs at 400 ISO, which matches darks and flats. I do not have darkflats.
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What does 'CA' in front of the filename mean BTW?Â
Interesting, that might be something specific with that sensor type. But the flat dimensions indeed don't match. Did you use the same capture software to take both the lights and flats?
