After Nicéphore Niépce died in 1829 Daguerre kept experimenting but eventually looked out some help,
Daguerre then went on to show François Arago, a teacher at the french academy of sciences, who proved to be a valuable asset to the development of The Daguerreotype. Members of the academy were also allowed to study Daguerres techniques.
The Daguerreotype process - The process of making the first Daguerreotype successful was started with a silver metal plate placed in a light proof box after being buffed and polished and is sensitised to light over a solution of iodine and bromine. After the plate has been put into the light tight box it is put into the camera where it is then exposed to light through the lens. The plate is then left as long as it may need then after its been exposed long enough it is brought out to be developed over hot mercury then fixed with sodium thiosulfate.