'Cassiopeia', May 1866.
© National Media Museum / Science & Society Picture Library
Collodian print by Julia Margaret Cameron (1815-1879). Cassiopeia was the Queen of Ethiopia who, according to Greek legend, was so proud of her beauty that Poseidon, the sea god, placed her among the stars to remind people of her vanity. Cameron's portraits are considered among the finest in early photography. She set up a private studio at her Isle of Wight home at the age of 48, after her daughter gave her a camera, and became expert at using the collodion wet- plate process. Her subjects were often friends, servants and neighbours.