Leon Warnerke's patent actinometer

Made:: 1895-1905

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Leon Warnerke's patent actinometer, photographic exposure meter
Science Museum Group
© The Board of Trustees of the Science Museum

Leon Warnerke's patent actinometer, photographic exposure meter, late 19th/early 20th century; works by using fluorescence

Details

Category:: Photography

Object Number:: 1921-97

Materials:: metal, brass (copper, zinc alloy), glass and plastic (unidentified)

Measurements:: overall: 85 mm x 90 mm x 55 mm, , .41kg

type:: exposure meter and actinometer

credit:: Abney, Lady

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