Silver Gelatine Dry Plate

Invented by Dr Richard L. Maddox and first became available in 1873.

Adding gelatin to the chemical solution coated onto the glass plates created a dry emulsion that remained light-sensitive for days. As well as this, the plates did not need to be developed immediately.

Photographers felt that wet plates gave a better tonal range and sharpness, however the dry plates were so convenient that they dominated the market from the 1880s to the late 1920s.