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.
I've had an issue with flats since late last year. Up until then, they were calibrating fine. I've never used dark flats as haven't needed to. I have tried them to calibrate the flats, but that didn't work either. Im not sure what's changed but it's driving me mad and has ruined a lot of imaging time. As you can see, it's highly typical, the bunnies are over the neb 🤦♀️I run the latest version of APP, I keep settings the same (obviously apart from exposure) as my lights. I try to match equal amount of flats to lights. When I load all my data in and click 'l-calibrated', the bunnies stay as they are. If its not a setting in APP (because I've changed nothing) perhaps a camera issue. Whatever it is, it's getting me down. I use an Altair 269c TEC. Captures and cools absolutely fine, so no issues there. I use SC for capture and histogram at 30%. Attached is one of my flats, baxkground neutralised, which I think looks fine. Looks like how a my others have previous to the issues. Need some other ideas if anyone has any please. Thank you
You don't need to keep the same setting as your lights for flats, offset I would keep the same, but iso/gain can be changed. For gain you can lower it to maximize the dynamic range of the sensor and then exposing the flats until the peak in the linear (!) histogram reaches about 50-80% of the range (30% is low and you seem to be clipping (maybe) on the left (best to check with stretching off), as long as it's not clipping on the right, you can expose for longer. Bias or darkflats that match the settings of the flats are then required, I'd advice darkflats as some sensors misbehave when taking the shortest amount of exposure for bias. About 20 flats is fine as well.
When you have the masterflat and masterdark you can load in a light, go to the preview filter (on top) and select "l-calibrated" to see if the flat is applied, you should then also see the tag "MF" in the filename for the light below in the list.

