I have had a very rough 2 months unfortunately health wise. I was struck 3x in a row with bacterial infections. The second infection occurred  after a routine hospital checkup and I became very sick. I had to rest and take a lot of antibiotics. Once I was recovering and restarting work 1 month ago, I again became sick. The infection was not yet gone, so even more antibiotics and rest was needed. Needless to say, it took a lot of my energy and I needed a lot of rest.
Finally, the infection is really gone and my energy is coming back step-by-step now and I have started work again. I am terribly sorry to have kept you waiting for support. I will address all outstanding questions and e-mails step-by step and will be on the forum daily from today.
APP 2.0.0-beta47 will come soon as well, a lot of work was already completed before I became very ill, so the release is also nearly ready for you. Beta47 will be much faster actually. Many workflows will be more than 2x faster, mosaics can even be 10x faster than before because registration really received a major boost... all compared to beta46. Â Before I release it, I will make sure that everything is working properly and then I will release it.
I took some frames and also took flat frames with telescope still on the pier (so I do not move camera). After the stack the flats get applied in this weird way
Latest stable version of APP
I am posting screenshotsÂ
typical flat frame via NINA Flatwizard
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Typical darkflat. I will upload the frames on upload server too, but wondering whats going on?Â
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My lights typically do not have the severe vignetting the flat shows!
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I am using a white sheet over telescope pointed to the sky. Wondering if I should go back to using my mac screen as before.
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Camera QHY268C
Extended fullwell mode
Gain 0 offset 50
ViXen R200 newt with vixen coma corrector
I am traveing, so did not take darks and bias frames. Wondering if that could be the issue?
This topic was modified 4 years ago by Tanveer Singh
@tsk1979 Why is that upload.astropixelprocessor.com URL in that otherwise empty comment?
The unstretched flat looks good to me.
In order to perform correct flat calibration, APP requires flats and either dark flats or bias. So please make sure you use those. Note that the temperature, exposure time, gain and offset of the dark flats need to match those of the flats. If the exposure time doesn't, APP requires bias frames as well of the same temperature, gain and offset as the flats.
