Do you mean developing pics? you take the picture with the appropriate focus and then develop it either at a place like cvs pharmacy (if its color film) or develop it yourself using d-6 developer, water, stopbath, water, fixer, and final wash if you are using t-400 film. (if it is black and white film) If you use a digital camera take the pics and upload them or go to a pharmacy to develop them.
calotype
A photographic fixer is soluble in water.
calotype
Nicephore Niepce is credited with inventing the photographic process, but not until 1825 after a few years of trying. The 18th century as you asked, is too early.
The calotype, an early photographic process, was developed by William Henry Fox Talbot in the 1830s, with the first successful photographic images created in 1834. It was patented in 1841 and allowed for the production of multiple copies from a single negative, marking a significant advancement in photography. This process laid the groundwork for modern photographic techniques.
Daguerreotype
The daguerreotype was the first photographic process and dominated the photographic world till the invention of other processes. It was a chemical process where a fragile image was formed on a silvered copper plate.
To extract silver nitrate from photographic waste, you can use a process called electrolysis. This involves passing an electric current through a solution containing the waste material, causing the silver ions to be attracted to the negative electrode and reduced to silver metal. The resulting silver can then be collected and further refined if needed.
The Frenchman Louis Daguerre invented the daguerreotype, an early photographic process that used a iodine-sensitized silvered plate and mercury vapor to produce photographs. Daguerre made this discovery by accident in 1835, and this photographic process was introduced to the public in 1839.
Louis Daguerre introduced daguerreotypes in 1839.
Eight
The first photographic process which was taken by Joseph Neipce took approximately 8 hours. However the daguerrotype, which was created by Louis Daguerre, was a new photographic process available to the public took approximately 30 minutes.