'Camp at Sebastopol'
© Royal Photographic Society/National Media Museum/Science & Society Picture Library
Roger Fenton (1819-1859)Albumen Print,1855. From 'The Photographic Album for the Year 1855' The Album gives the following details: Taken on Collodion, May 1855; fine, moderately clear; Exposure fifteen seconds; developed with Pyrogallic Acid. Lens by Ross; focal length twenty inches; diameter four inches; Diaphragm one inch.