Science: Grainless Films

In Berlin, last fortnight, Professor Emanuel Goldberg, German photographic chemist, announced that he had found a grainless emulsion for films which makes it possible to take a photograph the size of a pinpoint (.01 sq. millimeter) and greatly enlarge it with perfect reproduction of detail.

Pictures produced with ordinary silver emulsion film cannot be too small or too large without suffering distortion. The images recorded on light-sensitive film when the camera's shutter is snapped are formed by small deposits of metallic silver grains. For photographs taken through the microscope, these grains are...

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