A glass plate coated with a light-sensitive gelatin-based emulsion, used formerly as an improvement on the earlier wet plate.
- These studies ended in 1880 when with the introduction of the dry plate process he deemed photography to be no longer worthy of artistic endeavour.
- The development of the photographic dry plate in 1878 cut exposure times and made cameras simpler and more portable.
- In the 1870s technicians produced a dry plate with silver salts in a gelatine base which did not need to be sensitized in liquid but was ready to use and could be developed long afterwards.
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