This microscope, in use since 1967 at the Institut de Microbiologie et d'Hygiène, is equipped with a device that can photograph directly the result of the microscopic observation. The upper, gray, part of the microscope includes a cassette to install the film. This practice, known as photomicrography, goes back to the invention of the photographic process and was used this way until the 1990s. Since then, scientists have preferred to use cameras and digital technology to reproduce their microscopic observations.
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