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.
Ordered. It's not that much money and I can send it back but suspect it will help in any case.
Now, any speculation on why my flats do not eliminate this vignetting -- or, for that matter, the big defect that is on my non-focal-reducer image of Andromeda above?
Thanks much!
- Rich
At the moment not really sure no, these are very difficult to pinpoint as it's hardware specific, I can only suggest some things that might help but I would also advice to check with someone local to you (like a observatory) to go over the setup maybe.
Well, I received my 2" adapter, and I'm sorry to say it did not help with vignetting on Andromeda. Perhaps slightly, I could dig up the image. However, the 2" adapter is a superior setup for regular use and I will be using it in the future.
I suspect that my issue is that I got the cheapest available field flattener/focal remover. I should have spent the extra money for the Celestron one designed for my sct. Lesson learned.
Thanks!
- Rich
PS - in general, I would say that Andromeda is not a good target for my setup with it's long focal length. It is so huge with nebulosity everywhere that it highlights vignetting and makes background subtraction very difficult.
Oh that's a pitty, good it does help in the setup though! Keep us posted if you get to a better result, would be good to know.
