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<p>[QUOTE=&quot;ikandiggit, post: 987412, member: 16269&quot;]Last year I bought a new camera. A Sony Cybershot. This thread is not to promote the camera but to show one of the features that can be used as an additional tool in examining banknotes and to discover details not visible to the human eye. </p><p><br /></p><p>The camera has a &quot;Nightshot&quot; feature which allows photography in total darkness by using infrared.</p><p><br /></p><p>I just considered this a novelty until a couple of days ago when I used infrared to examine an &quot;error&quot; on a banknote I had posted. The thread ( <a href="http://www.cointalk.com/t127341/" class="internalLink ProxyLink" data-proxy-href="http://www.cointalk.com/t127341/">http://www.cointalk.com/t127341/</a> ) was about a Canadian $10 note that had a smearing of what I thought was the ink from the printing process. I had examined the note with a high power loupe and took close-up photographs of it and was convinced that this was legit. However, Krispy questioned it as did a member on a paper money forum. </p><p><br /></p><p>I had read about using infrared to validate/invalidate banknotes that were thought to be counterfeit or tampered with and thought I might give it a try on the note that I had. The result was amazing. There was no question that the smear on the note was not printing ink but something that was added later (maybe pen ink or maybe tar... who knows?) .</p><p><br /></p><p><img src="http://i720.photobucket.com/albums/ww201/ikandiggit/smr2a.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><img src="http://i720.photobucket.com/albums/ww201/ikandiggit/smr7.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>This got me thinking about what else might be visible using infrared. I photographed a couple of notes that I had and here is what I&#039;ve found:</p><p><br /></p><p>Canadian notes use two different inks when applying the serial numbers. Evident in this pic:</p><p><br /></p><p><img src="http://i720.photobucket.com/albums/ww201/ikandiggit/bfba2.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><img src="http://i720.photobucket.com/albums/ww201/ikandiggit/bfba1.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>I only had one U.S. bill handy but I did find something interesting on the back of the note.</p><p><br /></p><p>First the pics on the note done with normal photography:</p><p><br /></p><p><img src="http://i720.photobucket.com/albums/ww201/ikandiggit/us20aa1s.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><img src="http://i720.photobucket.com/albums/ww201/ikandiggit/us20aa2.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>The note taken with the infrared setting:</p><p><br /></p><p><img src="http://i720.photobucket.com/albums/ww201/ikandiggit/us206a.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><br /></p><p>In the next pic notice the blank strip on the left side of the note. Does anyone know if this is a security feature or an anomaly? I can&#039;t photograph any other U.S. notes because they are all in my safety deposit box. But I will shoot them in a few days to see if this strip is on all the notes.</p><p><br /></p><p><br /></p><p><br /></p><p><img src="http://i720.photobucket.com/albums/ww201/ikandiggit/us20if4a.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>I have several notes from foreign countries that I know have features only visible with infrared. I&#039;ll post those in the near future.[/QUOTE]</p><p><br /></p>

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