Mar 28 2026 APP 2.0.0-beta40 will be released in 7 days.
It did take a long time to have the work finished on this and it will have a major performance boost of 30-50% over 2.0.0-beta39 from calibration to integration. We extensively optimized many critical parts of APP. All has been tested to guarantee correct optimizations. Drizzle and image resampling is much faster for instance, those modules have been completely rewritten. Much less memory usage. LNC 2.0 will be released which works much better and faster than LNC in it's current state. And more, all will be added to the release notes in the coming weeks...
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.
Everything is working amazingly with APP except for one thing. I am having a problem with stars appearing about half pure cyan. Please see the attached example zoomed in of M81. I know there should be some way to help correct for it but what is the process? I looked at the selective color tool but am not sure what setting or how to use it, or even when it should be applied (right after doing background calibration?). I have been stacking and removing LP and background cal in APP then the rest of my processing is done in another program. Is there something I am doing that might be causing this? It is OSC data, with adaptive airy disc debayer, if it matters. Would bayer drizzle help or make this worse?
Hi @jtrezzo,
I think you have some chromatic aberration possibly showing in your OSC data.
I would recommend to use the align channel option in 2)Calibrate, save the calibrated frames. This will correct for the chromatic aberration.
Then after having done Background calibration & star color calibration. Use the selective color to reduce any residual cyan on the stars.
Select cyan, then increase blue and or reduce cyan, increasing blue will turn cyan into blue. if you reduce cyan, then the cyan goes to white.
First, try to perform the align channel option. It will possibly increase sharpness of your data as well 😉
Let me know if it helps.
Mabula
