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<p>[QUOTE=&quot;rmpsrpms, post: 3203408, member: 31773&quot;]Long ago I invented the &quot;smile director&quot;, which is essentially two short sections of ringlight. I initially created these using Jansjo LED lamps, with all but a curved slit masked-off. I also invented a technique for calibrating the lighting using a mirror at the plane of the coin. See this post from 2012 describing the technique:</p><p><br /></p><p><a href="https://www.coincommunity.com/forum/topic.asp?TOPIC_ID=108348" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.coincommunity.com/forum/topic.asp?TOPIC_ID=108348" rel="nofollow">https://www.coincommunity.com/forum/topic.asp?TOPIC_ID=108348</a></p><p><br /></p><p>Since then I have created a couple new ways to achieve the same results:</p><p><br /></p><p>1) using diffuser at the lens. By masking off parts of the diffuser, you can create whatever shape you want to the lighting, so it&#039;s easy to mimic the smile directors.</p><p><br /></p><p>2) using an actual ringlight, but masking-off the unwanted parts.</p><p><br /></p><p>For the 40-D toned roll, I used technique #2 above. The ringlight is a 40mm diameter &quot;Angel Eyes&quot; COB LED ringlight for 12V automobile use. They are meant to be used around smaller lights to create a halo effect. The work wonderfully for coin lighting. I mask off the parts I don&#039;t want to shine and can thereby create a pair of &quot;smile directors&quot; of any arc-length that don&#039;t require much calibration.[/QUOTE]</p><p><br /></p>

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