UPDATE FROM MABULA
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.
Here is what they look like. Not sure what is causing these black squiggles as the subs, master bias, master dark, and master flats look fine. Any ideas would be appreciated. Thanks!
Â
@rixon Many of the black squiggles have similar shapes which indicates that they are cold pixels that squiggle through the image due to drift during imaging. It could be that the raw lights show very short squiggles or single cold pixels, depending on how much drift happens during a single image. This seems to indicate that your flats don't fully correct the cold pixels or, if the cold pixels already show up as squiggles in the raw images, completely fail to correct for the cold pixels because they aren't pixels anymore but short squiggles. In the flats they would be single pixels so they'd be very hard to spot.
Hi Wouter, What settings should be turned on in the calibration step to prevent this?Â
@rixon First you'll need to inspect the raw lights to see if there are dark squiggles or only cold pixels. You can do that by inverting the image such that white becomes black and vice versa, for instance by exporting to TIFF and then opening in an external image editor. if there are little dark squiggles then you cannot correct those with flats.
However, if there are cold pixels (which should show up as bright single pixels in the inverted image), you can set the value of the integrate drop down of MasterFlat to a different value than "automatic". Then choose an outlier rejection filter and set the kappa low and kappa high values. When you hover over the drop downs, you get an explanation of what each setting does. You'll need to select the outlier rejection filter that applies to your amount of lights (which is what "frames" refers to) and then play with the kappa values until you get a good result.
