Рет қаралды 18,031
Forever and ever
Dissolve 3 grams of Syrian asphalt in 15 ml lavender oil.
Wait a few days.
Brush the emulsion onto a tinplate. Leave to dry on a preheated casting plate for approx. 20 minutes.
Expose to sunlight for 2-3 days.
Rinse the unsolidified emulsion with lavender oil.
Joseph Nicéphore Niépce called this process heliography and described it in 1829 in „Notice sur l’Héliographie“. It is the first photographic process that makes it possible to record reality on a metal plate from an optical darkroom (camera obscura).