Taken with Olympus BHS, Olympus S Plan Apo 60/1.40, DIC illumination. 41 image stack. It is very transparent, so stacking was done in 4 sections to retain surface detail.
It measures about 140 microns long and 50 microns wide. (0.0055 x 0.002 inch)

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I'm intrigued in how can you obtain so little focusing steps.Charles Krebs wrote:Olympus S Plan Apo 60/1.40, DIC illumination. 41 image stack.