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,
I usually use QHY168C (it is cooled camera so I have never minded dark scaling), but recently I have started building new portable kit with Sony Alpha 5000. I think taking darks every night would be a massive pain, so I am interested in dark scaling, but I don't understand one think - how it deales with different temperatures? I read all exif data of sony raw file and I didn't find any temperature value. Therefore I would apprecieate information how excatly dark scaling works.
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Best Regards
It is not required to take darks every session, just do it maybe once or twice a year for a cooled camera (and make one with say 80 or so). Also, a Bad Pixel Map is good to use always as that will work for that sensor at all times. Scaling is not advised, it can be done when the signal is linear, but if there is any other issue like amp-glow, it doesn't scale properly. With a non-cooled camera, I typically make a dark library of a few different temperatures. Since that is quite tricky, I just make a good one every season. When your sensor changes with say 5 oC (or the outside temperature), that would be a nice boundary to decide when to make new ones. It isn't ideal, but that is exactly why cooled camera's were invented.
Thanks! I think I will do so - with about 3 different exposure times every 5 degree.
