University of illinois Urbana-Champaign

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0.5mm mechanical pencil tip

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Created 08/11/2011

Main image contains a macro photograph of the pencil "lead" tip of a 0.5mm mechanical pencil, captured in the Visualization Laboratory using a Canon EOS-1Ds Mark III (21.1MP) DSLR with MP-E 65mm 1-5x macro lens at 5x magnification. (The inset/scale image was taken using a 100mm macro lens.)


  • Darren M. Stevenson , Imaging Technology Group
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