How long did it take to expose a daguerreotype photo?

The exposure time for a daguerreotype photo typically ranged from 10 to 30 minutes, depending on factors such as lighting conditions and the sensitivity of the chemicals used. In brighter light, exposure times could be shorter, while in dimmer conditions, they could extend beyond half an hour. This lengthy exposure was one of the challenges of early Photography, requiring subjects to remain very still during the process.