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 Volley Wang @volleywang,
Welcome to the Astro Pixel Processor Forum 😉
As far as I can see, nothing is wrong here.
The weird Field Of View of your data is the result of field rotation between your individual images. The actual visible area of the sky looks good and Optical Distortion Correction did it's task, judgind from the corners. If distortion correction failed, the stars would be misaligned in the corners 😉
In 6) integrate, there is a setting that controls the field of view: Composition Mode
By default it is set to Full, which means that all pixels of all images will end up in the field of view of your integration/stack,
If you would set it to Reference and create the stack, then the integration will be simply have the shape and size of your reference frame.
Please let me know if this is clear and if you have any other questions,
Kind regards,
Mabula
