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<p>[QUOTE=&quot;-jeffB, post: 2635592, member: 27832&quot;]Actually, you&#039;ll see photography lights advertising a &quot;color temperature&quot;. Because English was developed by ordinary people, not scientists, &quot;warm white&quot; has a <i>lower</i> color temperature, and &quot;cool white&quot; has a <i>higher</i> color temperature. Basically, a color-temperature rating means &quot;take something that&#039;s black, heat it up to this temperature, and it&#039;ll glow with this color&quot;.</p><p><br /></p><p>If you&#039;re dealing with CFL or LED lights, you also need to know about CRI -- color rendering index -- which has to do with how evenly the light is distributed across the spectrum. That can probably matter quite a bit for taking pictures of toned coins.[/QUOTE]</p><p><br /></p>

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