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Laserbeam Lens Fluorescence Detail | by yellowcloud
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Laserbeam Lens Fluorescence Detail

A 405nm violet diode laser is gently focused to a thin beam withh a large depth of focus. It is sent straight through the Pentax DA* 55mm 1.4 SDM lens and its glass elements fluoresce with different colors, since they consist of different kinds of optical glass.

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Taken on March 30, 2009