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<p>[QUOTE=&quot;desertgem, post: 425872, member: 15199&quot;]The glass in the frame is at a 45 degree angle, leaning towards the light. It should be close to the height of the lamp. When light from the lamp hits the inside angle a portion of it is directed straight down onto the coin. </p><p><br /></p><p>Whatever light doesn&#039;t get sent down to the coin just goes straight through the glass. No light ( unless you have a very shiney proof or a plastic holder) is reflected up through the glass to your camera. It is called coaxial lighting because the light from the lamp is going down to the coin, and you camera lens points the same direction. It is like your camera is the light source also. The tissue just diffuses the light enough so not much is reflected back into the camera. Hope this helps.</p><p><br /></p><p>Jim[/QUOTE]</p><p><br /></p>

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