Use of histogram during imaging

Discussion of using SharpCap for Deep Sky Imaging
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Moonstruck
Posts: 114
Joined: Tue Aug 17, 2021 4:34 pm

Use of histogram during imaging

#1

Post by Moonstruck »

I have a general question about use of the Sharpcap histogram during imaging. The last time I imaged (M51), the histogram curves were way over to the left of the graph, against the vertical axis, and even when I pressed the histogram curve stretch button, it didn't stretch it out much. The curves were all still crammed way over on the left side of the graph... any idea how I can fix that (stretch it out) next time? Does it have anything to do with the gain, or other settings?
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Menno555
Posts: 1059
Joined: Mon Apr 20, 2020 2:19 pm
Location: The Netherlands
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Re: Use of histogram during imaging

#2

Post by Menno555 »

Hi

Sounds to me that the histogram was in Linear mode. In the histogram area in the upper right, there is a checkbox with Logarithmic next to it. When you check that, the histogram should even out.
More info also on https://docs.sharpcap.co.uk/2.9/12_TheHistogram.htm

Menno
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