
Surely, a problem of photo printing did not exist in XIX century, because an original container of snapshot (in case of the early heliogravures it was the tin alloy plates coated with bitumen) had been a finally container itself. The very first photo printing process had become a calotypy that was invented a bit later, in 1841, by English scientist William Henry Fox Talbot. Typically a calotype used a paper coated with silver nitrate. Later a silver nitrated had been replaced by the next generation of photosensitive substances - a silver chloride. That was a beginning of the photo printing process developing. Meanwhile, a wave of daguerreotype swept the world. In 1839 that technology came to Russia, where the first daguerreotype had become a picture of Saint Isaac's Cathedral in St. Petersburg. Daguerreotype turned out more profitable by the photosensivity index, but the calotipy was more suitable for the portraits, requiring less than one minute exposure.
Today the best quality of photography is available for everyone. We can make a shot at any place and any time just tapping a few times on our smartphone's screen. Making hundreds and thousands of photos we don't even think of what the great minds and great efforts made it so easy for us.