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Vertical Banding Troubleshooting

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#1 GoldSpider

GoldSpider

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Posted 22 November 2019 - 01:12 PM

I've got some vertical banding in my L stack and I'd like to confirm what I think the problem is.  ASI1600MM-Pro, 0 gain/15 offset, 60 x 60 sec. exposures.  Dithered "random" every 3 exposures.

 

Banding in L - 0 gain 10 offset

 

I've read a few threads suggesting that this kind of banding can happen with this camera at gain 0 when exposure time is insufficient to bury read noise.  Am I correctly diagnosing this?  I'm considering shooting my L at 76 gain like I do my RGB frames.

 

I can post links to the stack or individual subs if that will help.

 

Many thanks!


Edited by GoldSpider, 22 November 2019 - 01:15 PM.


#2 brettkoz

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Posted 22 November 2019 - 01:53 PM

My less than expert opinion is that it's either too little signal, or a problem with your usb connections somewhere. I had issues similar to this when I had an unpowered usb hub, after upgrading to a powered hub the issue went away.



#3 GoldSpider

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Posted 22 November 2019 - 02:25 PM

All USB devices are going through 12v powered USB hub.


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