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June 24 2026 APP 2.0.0-beta46 has been released !

Improved internal memory configuration (lower ! memory usage), fixed beta45 startup issue, fixed Set Save Directory & 2-panel mosaics.

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.

 

neutralize-BG in the "stretch" section

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(@andynowlen)
Neutron Star
Joined: 6 years ago
Posts: 97
Topic starter  

I have begun to use the Asi533mc pro and the l-enhance filter.  After tab 9 background calibration and calibrate star colors, if I select 'neutralize-BG' in the 'stretch' section it introduces a strong green color cast that is not seen before making that selection.

1. Do I need to select neutralize-BG?  Is it ok to leave it unchecked and then save. 

2. Is there a better way to avoid the color cast it introduces?  

Thanks.



   
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(@wvreeven)
Quasar
Joined: 8 years ago
Posts: 2134
 

@andynowlen Do you get the same green cast if you do not calibrate the star colors? The l-enhance filter may filter out too much light for that algorithm to work well, since it assumes that all stars are black bodies radiating at all wavelengths in the visual spectrum. I never calibrate the star colors when using my l-extreme filter and I never get a green cast when I neutralize the background.



   
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(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 

Yep, that'll be the case indeed. The L-extreme filters Ha and OIII and that is narrowband data. The color correction tool requires broadband data to work optimally.



   
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