Name given to the distance between the surface of a lens and the point at which it focuses the light passing through the lens and is shown as the f stop.
FOCAL LENGTH: "The focal length was short and gave a close up of the flower."
Cite this page: N., Sam M.S., "FOCAL LENGTH," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/focal-length/ (accessed March 21, 2023).
