Gallery 4 -- Photomicrographs assorted, cropped, combined and distorted
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DMI ref. omg185     Image title: Stereo LP record grooves


Copyright 2006 David Malin Images

This reflected light image is at about 20x magnification on the original 4 x 5 inch photomicrograph. The grooves on the record are about 0.12mm apart, corresponding to about 200 to the inch.