I got curious about OCR as a sort of poor man’s microfiche. I printed a test paragraph on high quality paper with a laser printer. The smallest font I could read under a USB microscope was 2.5pt, though I could probably have gone smaller if I used polymer paper. The fibers of the paper are quite apparent under a microscope. Transparency film paper was too smudgy.
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I got curious about OCR as a sort of poor man’s microfiche. I printed a test paragraph on high quality paper with a laser printer. The smallest font I could read under a USB microscope was 2.5pt, though I could probably have gone smaller if I used polymer paper. The fibers of the paper are quite apparent under a microscope. Transparency film paper was too smudgy.