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Photography Q&A
Histogram and Dynamic Range
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<blockquote data-quote="J-see" data-source="post: 457252" data-attributes="member: 31330"><p>The histogram is just a visual tool to give you some rough indication of the current situation but it's never exact science.</p><p></p><p>If you look at the both opposite ends of a histogram, you notice it ranges from 0 to 255 or black to white. That's already a very compressed measure to express your tones and dynamic range. Dynamic range is expressed in exposure stops which means that the next stop is always twice as "bright" as the previous. If you have a dynamic range of 10 stops, the highest stop is 1024 times brighter than the first which implies there are 1024 different values between both ends of the spectrum. That exceeds what the histogram can show.</p><p></p><p>That most monitors only show an 8-bit variation has more to do with it than the impossibility to represent it fully. It simply displays what you see.</p></blockquote><p></p>
[QUOTE="J-see, post: 457252, member: 31330"] The histogram is just a visual tool to give you some rough indication of the current situation but it's never exact science. If you look at the both opposite ends of a histogram, you notice it ranges from 0 to 255 or black to white. That's already a very compressed measure to express your tones and dynamic range. Dynamic range is expressed in exposure stops which means that the next stop is always twice as "bright" as the previous. If you have a dynamic range of 10 stops, the highest stop is 1024 times brighter than the first which implies there are 1024 different values between both ends of the spectrum. That exceeds what the histogram can show. That most monitors only show an 8-bit variation has more to do with it than the impossibility to represent it fully. It simply displays what you see. [/QUOTE]
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Histogram and Dynamic Range
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