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Photography Q&A
Newbie question about picturing in sunlight
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<blockquote data-quote="WayneF" data-source="post: 405189" data-attributes="member: 12496"><p>Your red is overexposed a bit (and clipped), which is a usual case. Red things (like closeup of roses) are especially prone to overexposure.</p><p></p><p>Watch your camera histogram to detect clipping, and back off a bit when it occurs (and try again). But DO NOT watch the single gray camera histogram. It is merely a math abstraction, not real data, and it shows nothing of interest, and especially it does not show clipping. </p><p></p><p>Only watch the three individual RGB histograms, which do show the real data.</p><p></p><p><a href="http://www.scantips.com/lights/histograms.html" target="_blank">Two types of Histograms</a></p><p></p><p>You can see this now on your image in a photo editor (like Adobe) that can show the individual red, green, blue channels of the histogram. Red is clipped, due to overexposure.</p><p></p><p>As we increase exposure, our histogram data moves right. Bright things normally should closely approach the right border edge, but should NOT pile up tall there due to clipping.</p><p></p><p>If you have Adobe, in the Levels histogram, hold down the ALT key and slide the White Point slightly left, and it will show you which pixels are being clipped (by that new position of the White Point).</p></blockquote><p></p>
[QUOTE="WayneF, post: 405189, member: 12496"] Your red is overexposed a bit (and clipped), which is a usual case. Red things (like closeup of roses) are especially prone to overexposure. Watch your camera histogram to detect clipping, and back off a bit when it occurs (and try again). But DO NOT watch the single gray camera histogram. It is merely a math abstraction, not real data, and it shows nothing of interest, and especially it does not show clipping. Only watch the three individual RGB histograms, which do show the real data. [URL="http://www.scantips.com/lights/histograms.html"]Two types of Histograms[/URL] You can see this now on your image in a photo editor (like Adobe) that can show the individual red, green, blue channels of the histogram. Red is clipped, due to overexposure. As we increase exposure, our histogram data moves right. Bright things normally should closely approach the right border edge, but should NOT pile up tall there due to clipping. If you have Adobe, in the Levels histogram, hold down the ALT key and slide the White Point slightly left, and it will show you which pixels are being clipped (by that new position of the White Point). [/QUOTE]
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Photography Q&A
Newbie question about picturing in sunlight
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