losing red after us...
 
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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.

losing red after using calibration frames

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(@ofergol)
Red Giant
Joined: 6 years ago
Posts: 27
Topic starter  

Yesterday I took 25 light subs of the rosette nebula.

I wanted to quickly see the result so I integrated these frames without any calibration and got a nice result with a lot of color.

later in the day, I did the full process with 20 flats, 30 darks and 60 bias frames.

The result was very disappointing. color was lost and the nebula was with much lower contrast.

Lights were taken with hydrogen alpha filter. The flats were also taken with the filter.

I would appreciate your help with this problem 👍 

Thanks

ngc2244 Hydrogen alpha session 1 St
ngc2244

 



   
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(@wvreeven)
Quasar
Joined: 8 years ago
Posts: 2134
 

@ofergol Hi Ofer, can you tell us more about how you took the images? What camera are you using? What software to take the images? Are all images taken at the same gain+offset (or ISO) and temperature? What do you use as light source for the flats?



   
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(@ofergol)
Red Giant
Joined: 6 years ago
Posts: 27
Topic starter  

I'm using ZWO ASI533. Gain is set to 101.

All frames were done with the camera cooled to -10c.

I'm using the ASIAIR pro to manage the astrophotography.

Flats are done with a LED panel ( https://www.amazon.com/RALENO-Lithium-Battery-3200K-6500K-Adjustable/dp/B07FL2ZFFS).



   
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(@wvreeven)
Quasar
Joined: 8 years ago
Posts: 2134
 

@ofergol It looks like that LED panel has a configurable color temperature. Does it help to set it to a cooler (i.e. redder) temperature and shoot new flats?



   
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(@ofergol)
Red Giant
Joined: 6 years ago
Posts: 27
Topic starter  

I will try to take "redder" flats, but the problem was the same without even using flats.



   
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(@wvreeven)
Quasar
Joined: 8 years ago
Posts: 2134
 

@ofergol Would you mind uploading your data to

https://upload.astropixelprocessor.com

using upload1 for both username and password? Then I can take a look at your data and try to help you get the color back.



   
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