Individual frames l...
 
Share:
Notifications
Clear all

Individual frames look fine, but integrated image is all green  

  RSS

(@mfschmitz)
Molecular Cloud Customer
Joined: 4 months ago
Posts: 5
March 5, 2021 21:23  

I'm not understanding what's up with my integrated image.  It ends up all green.  The individual frames, after normalization, look fine (I've attached one).  But the integrated image looks all green (attached also).  I'm using a ASI533MC and an Optolong L-Pro filter.  In tab 0, I chose RGGB pattern, Adaptive Airy Disc for algorithm, and checked the force Bayer/X-Trans CFA box.  I'm using the defaults for the other tabs.  What am I doing wrong?

Thanks,

Mark

Light M3 180.0s Bin1 L 0030 St
M3 3 4 2021 RGB St

ReplyQuote
(@wvreeven)
Galaxy Admin
Joined: 3 years ago
Posts: 731
March 6, 2021 04:41  

@mfschmitz There are strange bands to the top and bottom of the integrated result that indicate an issue with some of the calibration frames. How does the integration result look when you don’t use flats?


ReplyQuote
(@mfschmitz)
Molecular Cloud Customer
Joined: 4 months ago
Posts: 5
March 6, 2021 17:24  

@wvreeven   Here is the integration without any flats.  Just darks and lights.

Thanks,

Mark

M3 3 4 2021 NoFlats St

ReplyQuote
(@wvreeven)
Galaxy Admin
Joined: 3 years ago
Posts: 731
March 6, 2021 17:29  

@mfschmitz There barely is any difference between the two images, apart from the fact that the upper left and lower right corners suddenly have become purple. What result do you get it you simply integrate the images without any calibration files at all?


ReplyQuote
(@mfschmitz)
Molecular Cloud Customer
Joined: 4 months ago
Posts: 5
March 6, 2021 17:37  

@wvreeven  Ah Ha!  That made a difference.  Integration from just the lights attached.

M3 3 4 2021 JustLights St

ReplyQuote
(@wvreeven)
Galaxy Admin
Joined: 3 years ago
Posts: 731
March 6, 2021 17:40  

@mfschmitz How did you take the darks? Were they the same exposure time, temperature, gain and offset as the lights? And taken with the same software as the lights?


ReplyQuote
(@mfschmitz)
Molecular Cloud Customer
Joined: 4 months ago
Posts: 5
March 6, 2021 17:44  

@wvreeven  It's the darks!  Here is the integrated image using lights, flats and dark flats.  Looks much better.  I guess I'll be making some new darks -- the ones I was using are only a couple of months old.

 

Thanks for your help. 

Mark

 

M3 3 4 2021 LightsFlatsDarkflats St

ReplyQuote
(@mfschmitz)
Molecular Cloud Customer
Joined: 4 months ago
Posts: 5
March 6, 2021 17:46  

@wvreeven  The old darks were all the same temperature, gain and exposure time.  Not really sure why they made the problem, but I'll take some new ones and see how that goes.


ReplyQuote
Share: