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.
So Ive been playing around with data from my OIII filter and when I look at a single calibrated light, everything looks normal, but then when I integrate, I get what looks like light pollution with bad vignetting. Im not sure what Im doing wrong. Any ideas would be helpful.
the first one is a single calibrated image and the second is a stack of 30 x 180 sec lights with 3.5 OIII filter and 33 flats and dark flats with a master dark and a BPM
@thextra10th Hi Zachary. Did you shoot de flats and dark flats at the same gain, offset, temperature and exposure time? Did you shoot the darks for the master dark at the same gain, offset, temperature and exposure time as the lights? What does the integration look like if you do not apply the flats, i.e. only apply the master dark and BPM? What version of APP are you using? If 1.082 or before, can you enable 32 bit masters in tab 2 and see if that helps?
@wvreeven. Yes, the flats and dark flats were all done at the same gain, offset, and exposure time. I didn’t cool the camera to the same temperature as I didn’t think that mattered for flats. The Darks were also done at the same temp, gain, and offsets. I have not tried integrating without flats, I’ll do that today. I will check my version to see,
Thanks
@thextra10th Thanks for the info. The temperature for the flats indeed doesn’t matter so it looks like you did this right. Do your flats for other filters work well? Any differences between taking the OIII flats and the other flats like a different light source or a different location where you took them?
@wvreeven here is the integration without flats, it seems slightly better.... the other filters all seem fine. I used the same light source, and location for the flats. in this last go around I did try using a t-shirt between the light panel (using the pegasus astro light panel) and scope, but didn't seem to help. the master flat doesn't look great in my opinion, so I'm thinking that is the root problem.
@thextra10th That indeed does look better. What light source do you use for the flats? Perhaps it is not compatible with the OIII filter pass band? Or maybe the OIII filter lets pass through IR radiation from the light source that gets picked up by the sensor?
@wvreevenim Im using a Pegasus Astro flat panel for my light source. I'm currently running an integration of trying 3 sec flats and dark flats even though it was only about 20-30% on the histogram but the overall flat looked a little better. Its very interesting that this one filter doesn't behave like the others. Im also using the ZWO 294MM at 2x2 binning
@thextra10th You probably know but make sure that all lights, darks, flats, dark flats etc have the same binning. Combining 1x1 and 2x2 binning will not work.
Apart from that, fingers crossed that the new flats work!
@wvreeven yeah, all are matching and no luck with the new flats. I'll need to look at other OIII data, maybe it was just a bad night.....
