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.
When I open remove light pollution the screenshot shows what I see - a pure white image. I don't know how to resolve this. It is the first time such a result has appeared for me. Â
What should I do?
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EDIT: I get the same result when opening 'correct vignetting' and 'calibrate background' in addition to 'remove light pollution.' If I simply open the stacked integration the image looks fine. If I click 'neutralize-BG' on the right side, the image goes all white. What settings do I need to change? Since I have subscribed this is the first time I have seen this behavior. Same camera and workflow.
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What camera are you using and if it's a regular astro-cam, what is the offset you used?
I am using the Asi533mc pro camera. I also use the AsiAir Pro and am not able to adjust the offset. Â
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Just so you know.
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Ah, so can you check the FITS header to see what the offset is at? Should be somewhere in that window left from the image.
Hi,
When I look at the histogram on your screen-shot above, I see what looks like a single column of what would be very cold dark pixels at the very left hand side then a gap of about 80% of the histogram space before seeing all the values piled up at the right hand side.
I would guess that you can make your data more visible by adjusting the B and/or ST filters.
I suggest that something has gone slightly amiss during Calibration that these cold pixels have not been detected and removed. Maybe you can try adjusting the Cosmetic Correction / Cold Column Kappa values on the Calibration tab to get a better result.  As I recall the Christian Sasse video shows you how to view what effect changing these values has on your subs.
Regards
Mike
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Well spotted Mike, that might contribute.
