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. Before I release it, I will make sure that everything is working properly and then I will release it.
Hi all,
I'm trying, without success, to exploit the "vignetting correction" tool, following the tutoria but the result is completely unusable so I'm surely doing something wrong.
I provide the screenshots before and after so that you can eventually provide some suggestions
Hi,
I also have severe vignetting in my Intes MN56 with a very small (28 mm) secondary. I find this tool rarely works effectively, but the light pollution removal tool is so good it negates the need for the vignetting tool.
Maybe you can try the light pollution removal tool to balance gradients. It works very well for me - just a thought/suggestion.
Yes that tool can be a bit tricky.
Here's an answer Mabula gave in the past and works for me. Though it's always preferred to use real flats to correct vignetting;
On all lights if you make an artificial master flat, select "create artificial flat". This will save the correction model as an artificial Master Flat. You can then use this Master Flat, just like an original master flat to correct the vignetting.
To get the most accurate result, first calibrate the lights with a master dark or master bias (create masters & assign to lights button, tab 2). Save these calibrated files (tab 2 all the way down). Then clear APP or reload APP and make the artificial flat using one of the calibrated frames (load in 1 of the calibrated lights). Then load in all the calibrated lights and add the artificial flat, calibrate again and see if that works.
@vincent-mod
Hey vincent is there a video on this? I'm not very adept at these instructions.
Cheers
Unfortunately not. But to break it down a bit better;
1. Calibrate your lights with your darks and bias frames.
2. Save the calibrated frames (tab 2, all the way down)
3. Load 1 of the calibrated subs (just one).
4. Create the artificial flat using that sub and save that artificial flat
5. Load all data you have in APP, add the artifical flat and process like you normally do.
This is how it works best usually, of course it's a bit of a workaround for not having actual flats and it won't remove dust etc.
you say create the artificial flat using that sub, how exactly do you create the flat? how do you do that step?
For that step you go to the tools tab, select "correct vignetting" and in there you also select "create artificial flat". You create 8 boxes around the image in the background and press "calculate". If that looks ok, you can save the resulting masterflat and use it for your data. It doesn't always work nicely, that will depend on proper data and calibration.
