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Title: Wynne's earliest pattern of exposure meter, (simple actinome [Go to resource]
Description: Wynne's earliest pattern of exposure meter, (simple actinometer (metal-cased dial) with separate wooden slide rule). Marked 'Wynne's Infallible Exposure Meter', instructions stamped onto side. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: actinometer
exposure meterSource: Science Museum Creator: Wynne (maker) Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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