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<p>[QUOTE=&quot;2manybooks, post: 1932612, member: 8267&quot;]Daguerreotypes were only sensitive to the blue end of the spectrum, which makes it very difficult to interpret the original colors.</p><p><br /></p><p>&quot;Daguerreotypes are orthochromatic, they are very insensitive to warm colors. Reds, oranges and yellows come out unnaturally dark, and blues come out very light. On the street you don’t have much trouble with it, but with people it can be a problem if they have suntans. It can actually take three stops more exposure to do a portrait of someone with a tan. As a matter of fact in the early days when exposure times were many minutes it was suggested that people should powder their faces with flour in order to be photographed.&quot;</p><p>- from an article by Jerry Spagnoli, a modern daguerreotypist</p><p><a href="http://www.jerryspagnoli.com/Extras/Resources/How%20the%20World%20Looks%20web.pdf" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.jerryspagnoli.com/Extras/Resources/How%20the%20World%20Looks%20web.pdf" rel="nofollow">http://www.jerryspagnoli.com/Extras/Resources/How the World Looks web.pdf</a>[/QUOTE]</p><p><br /></p>

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