Before there was digital, there was film. And before there was film, there was the collodion wet plate process.
The wet plate process was introduced in the 1850s. It is a complex hands-on craft, involving silver nitrate and other hazardous chemicals. In addition, wet plates require tremendous amounts of lights. Exposure times range from several seconds to a couple minutes. However, if everything is done right, the result is a beautiful and strikingly brilliant photograph with a silvery feel.