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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...

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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.

 

MasterDark not being applied

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(@ctattersall)
Molecular Cloud
Joined: 4 years ago
Posts: 2
Topic starter  

Hi - apologies if I'm missing something obvious. I've been using APP for a couple of months now without issue, but suddenly, as of this morning, it appears to be not applying MasterDark, MasterFlat or MasterDarkFlat to my Lights. It appears to go through all of the steps of creating the masters from the individual dark, flat and dark flat files, but the resulting integrated image is very definitely without calibration frames applied. I've just done a simple test of stacking 40 lights captured last night with no calibration frames, then performed the same but with 25 darks loaded, and the resulting integration files are visually identical. Happy to provide screenshots, logs, files etc. if someone can help me please.

 

Thanks

Chris



   
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(@ctattersall)
Molecular Cloud
Joined: 4 years ago
Posts: 2
Topic starter  

I think I've found the cause. The Dark files I were using were from my dark library and captured using different software (EKOS) to the Lights which I captured yesterday using NINA. Looking at the FITS meta data there is a mismatch between the Focal Length and Focal Ratio that I've entered for the set-up in EKOS vs that in NINA. I took another DARK with my new set-up, using NINA this time so the meta data tags all match, and this time the masterdark was applied correctly. Interestingly APP didn't flag up any kind of error that I could see with the mismatched files.

Hope this helps someone with the same set of circumstances!


This post was modified 4 years ago by Chris Tattersall

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

Great you found that out already. That's indeed a good cause for issues, which is why we advice to always use 1 program to capture data with. Thanks for sharing!



   
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