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Nikon DSLR Cameras
Out of Production DSLRs
D90
Small areas of image flashing in D90 lcd viewing screen
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<blockquote data-quote="WayneF" data-source="post: 168266" data-attributes="member: 12496"><p>Right, only look at the three individual histograms, the three RGB channels. The one single composite RGB histogram is NOT actual data, but is instead a computed luminance simulation (representing apparent brightness to human eye). It rarely even shows clipping. It is not just the green channel, but our eyes are rather sensitive to green, so the green channel is weighted heavily in the brightness computation. The simulated composite is never of interest to us.</p><p></p><p>The real data is in the three individual channels. They show the actual real data, the only thing that counts.</p><p></p><p><a href="http://www.scantips.com/lights/histograms.html" target="_blank">Two types of Histograms</a></p></blockquote><p></p>
[QUOTE="WayneF, post: 168266, member: 12496"] Right, only look at the three individual histograms, the three RGB channels. The one single composite RGB histogram is NOT actual data, but is instead a computed luminance simulation (representing apparent brightness to human eye). It rarely even shows clipping. It is not just the green channel, but our eyes are rather sensitive to green, so the green channel is weighted heavily in the brightness computation. The simulated composite is never of interest to us. The real data is in the three individual channels. They show the actual real data, the only thing that counts. [URL="http://www.scantips.com/lights/histograms.html"]Two types of Histograms[/URL] [/QUOTE]
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Nikon DSLR Cameras
Out of Production DSLRs
D90
Small areas of image flashing in D90 lcd viewing screen
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