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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.

Difficulty with flats on the new ZWO ASI2600MC-Pro camera

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(@lead_weight)
Red Giant
Joined: 9 years ago
Posts: 34
Topic starter  

I've tried using all variations of flats from 12k ADU up to 40k ADU. At 40k ADU they overcorrect. I settled on 28.5k ADU and yet, they still don't remove all the dust motes. Just the 3 lightest ones. Two darker ones will not correct out. The camera was not moved, and I've been able to shoot a ton of variation on the flats at all those ADU values, as well as Flat-Darks. All calibration frames are at the proper temperature, and exposure. I'm at a loss. 

Please take a look and see what the issue might be. I don't have this issue on my mono camera, so I don't know what might be wrong here. Bayer matrix is RGGB.

Dropbox download of 20 lights, 10 darks, 10 bias, 10 flat, 10 flat-darks.

File Download



   
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(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 

Thank you Andrew! At the moment we're preparing for Astrofest London, so if you could wait till Tuesday next week, that would be very appreciated. I'll download the files then.



   
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(@jmfdiver)
Brown Dwarf
Joined: 9 years ago
Posts: 5
 

@lead_weight

Are you still having this problem. I have the same issue with zwo asi 183mc and still trying to sort it out. I also have no problem with my qsi 690



   
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(@lead_weight)
Red Giant
Joined: 9 years ago
Posts: 34
Topic starter  

@jmfdiver

Not anymore. I'm convinced the issue was my large telescope, and not camera calibration issues. I've been imaging with an EdgeHD 11, and focus changes wildly overnight due to temperature changes. These temperature changes and their effects on focus, means that the flats (set at my last focus distance from the nights imaging session), were only properly correcting a partial set of frames, and that earlier frames from the same imaging session were too far off focus from the last set, such that the dust donuts weren't getting corrected out. I don't tend to have this issue with my smaller refractors which are less effected by temperature changes, and therefore, easier to correct.



   
jmfdiver reacted
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(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 
Posted by: @jmfdiver

Are you still having this problem. I have the same issue with zwo asi 183mc and still trying to sort it out. I also have no problem with my qsi 690

Flats not working properly can have all kinds of causes, maybe you could make a new topic in which we can investigate?



   
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