Flats to calibrate ...
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2023-03-15: APP 2.0.0-beta14 has been released !

IMPROVED FRAME LIST, sorting on column header click and you can move the columns now which will be preserved between restarts.


We are very close now to  releasing APP 2.0.0 stable with a complete printable manual...


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Flats to calibrate need always darks. Using darkflat??

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Joined: 4 years ago
Posts: 138
Topic starter  


To calibrate lights just with master flats (created with Sharpcap already bias subtracted) + masterdarkflat is impossibile: popup warning.

Why does flat (or master flat) calibration always need darks (or master dark) to work?

Applying darks (or master dark) to my lights, with asi533, often create more problems than advantages ( https://www.astropixelprocessor.com/community/main-forum/hot-pixel-final-integration-with-black-stripes/ ): so i come to conclusion, after days of experimenting, that using BPM solves that annoying problem of black stripes.

But it's impossible using just BPM: APP wants always darks (or master dark) to calibrate flats (or master flat)...I don't want to use darks...even because asi533 has 0 (zero) ampglow, so no need to use darks that introduce a problem in final stacked image (instead of improving it).


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Universe Admin
Joined: 6 years ago
Posts: 5386

I think it's better not to use Sharpcap or any other processor to calibrate your frames. They do things differently compared to APP and APP in this sense is superior with its algorithms to calibrate your data. Same thing for your flats, APP probably has no idea they were already calibrated.

Just load in your data + calibration data and let APP create the masters, that might actually solve your other issue as well... maybe.