Introduction

From the 1720’s scientist started to discover the individual elements that came to start photography but it wasn’t till 100 years later that the first image was actually captured. In the 1720’s Johann Schulze’s made the discovery that silver nitrate would darken when exposed to light. This would later on be used to make photographic paper and film to capture images, but because a way to isolate elements and compounds such as Iodine and Bromine hadn’t been discovered the process of capturing images could not be developed further at the time. According to (REF ONE) “Snyder has argued  that the invention could not have been made in any event until a way was found to isolate the production of previously-unknown elements and compounds (such as iodine and bromine). In addition, it depended on the discovery of new chemical reactions and Herschel’s 1819 discovery that silver salts are dissolved by what is now known as photographic fixer.”

IMAGE (REF TWO)