|View from the Window at Le Gras|
Niépce developed his process to simplify the creation of lithographic printing plates. Lithographic plates of images were often created by using a camera obscura to project the image and manually tracing the image onto the plate. His lack of skill in drawing and tracing inspired him to find a better method.
The fact that the buildings are lit by the sun from both directions indicate that the exposure must have been eight to nine hours. However, modern researchers experimenting with similar materials have suggested that the exposure might have taken several days.
Niépce named his process Heliography and was not able to successfully commercialize it during his lifetime.
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