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Richard Maddox, English physician and amateur photographer, c 1870s

Richard Maddox, English physician and amateur photographer, c 1870s
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Largest available format 2066 × 3504 px 1 MB
Dimension [pixels] Dimension in 300dpi [mm] File size [MB] Online Purchase
Large 2066 × 3504 px 175 × 297 mm 981 KB
Medium 604 × 1024 px 51 × 87 mm 396 KB

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IMAGE number
UIS5075672
Image title
Richard Maddox, English physician and amateur photographer, c 1870s
Auto-translated text View Original Source
Location
Science Museum, London, UK
Medium
photography
Image description

Richard Maddox, English physician and amateur photographer, c 1870s. In 1871 Maddox (1816-1902) discovered a way to use gelatine instead of glass as the basis for photographic plates, thus inventing the first practicable gelatine silver halide emulsion. The gelatin dry-plate process involved coating a glass plate with a gelatine mixture which held in suspension fine, light sensitive particles of silver salts. ©SSPL/Science Museum

Photo credit
SSPL/UIG / Bridgeman Images
Image keywords
portrait

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