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Monthly Squares

January Squares: Polarised-light

This is my day 23 contribution to Becky’s January Squares: Light photo challenge and another fake, hyphenated word.

These are Sodium Thiosulfate crystals photographed through a microscope using polarised light. I should also note that I edited the text twice, changing the s in polarised to a z and then back to s. I’m a Brit and the photo was taken in England so it’s s.

January Squares: Polarised-light

Categories
Weekly Photo Challenge

Lines of a fingerprint.

The Daily Post Weekly Photo Challenge is Lines.

The photo shows two overlapping fingerprints in sodium thiosulfate which has crystallized. The crystals were photographed through a microscope using polarized light.

Sodium thiosulfate is used as a photographic fixer in the darkroom as silver halide dissolves in it. Commonly known as Hypo in the days of the black and white darkroom.

A fingerprint in sodium thiosulfate.