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<blockquote data-quote="Rick M" data-source="post: 56185" data-attributes="member: 4399"><p>The primary point of HDR is to expand the range beyond normal, both above and below the normal exposure. The 2 over and under exposures do not capture everything captured by the normal exposure, it is still necessary to complete the range. Some people think you can manipulate a single exposure and merge two changed from the original, this does not work for the same reason, you cannot reproduce something that was not already in the image. The overexposure blows out some details, but picks up the shadow details, the underexposure picks up the blown out details from the normal. The normal brings together what the other 2 have lost.</p><p></p><p>Goes along the same theory as the conservation of matter and energy, in that you cannot get more out of something that isn't there to begin with, 1 or 2 exposures cannot reproduce the range as well as 3. </p><p></p><p>Just my 2 cents <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Rick M, post: 56185, member: 4399"] The primary point of HDR is to expand the range beyond normal, both above and below the normal exposure. The 2 over and under exposures do not capture everything captured by the normal exposure, it is still necessary to complete the range. Some people think you can manipulate a single exposure and merge two changed from the original, this does not work for the same reason, you cannot reproduce something that was not already in the image. The overexposure blows out some details, but picks up the shadow details, the underexposure picks up the blown out details from the normal. The normal brings together what the other 2 have lost. Goes along the same theory as the conservation of matter and energy, in that you cannot get more out of something that isn't there to begin with, 1 or 2 exposures cannot reproduce the range as well as 3. Just my 2 cents :) [/QUOTE]
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