Duplication of the histogram: image offset of ASI533mc

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Marc S
Posts: 1
Joined: Fri Jan 24, 2020 10:52 pm

Duplication of the histogram: image offset of ASI533mc

Post by Marc S » Tue Apr 28, 2020 2:30 pm

I am worried about the interpretation of a histogram of an offset image.

Without offset in the camera configuration, the histogram is normal but with a truncation at 0 ADU (see attached image)

Now I introduce a minimum offset of 5, and there I see a sort of duplication of my histogram of the Bias image. (see attached image).

How to interpret this result? Is it normal?

Thank you for your reply?
Attachments
histo bias avec offset.jpg
BIAS sans offset.jpg

Moson
Posts: 205
Joined: Wed Apr 01, 2020 8:28 am

Re: Duplication of the histogram: image offset of ASI533mc

Post by Moson » Thu May 14, 2020 2:16 am

It's normal in the histogram that has a truncation at 0 ADU. And could you please send your original image to us.

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