• 1824 to 1826 : Images etched on copper plate, by treating the bitumen images with the aqua fortis method.Niépce resorts to a Parisian etcher, Augustin Lemaitre, to advise him and realise prints on paper from these etched plates.


In 1825, Niépce also requests from Vincent and Charles Chevalier , opticians in Paris, all sorts of lenses to perfect his camera obscura.This is also the year of his son’s wedding with Eugénie de Champmartin.

Charles Chevalier


The First Photograph
" Point de vue de la fenetre"

• 1826 : He obtains images etched on tin.He extracts starch from a gourd called “giraumont .“ Production of a textile fiber that can be woven from a plant called syrian milkweed.


• 1827 : Point of view on an unetched tin plate (the only preserved image achieved by Niépce with a camera obscura that is representative of this step of his research).


• 1828 : Unetched images on polished silver plates achieved by exposing the latent image to iodine vapors.

• 1829 : Partnership with Louis Jacques Mandé Daguerre, a camera obscura specialist,with the purpose of improving the luminosity and the quality of the images at the camera obscura
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