What is the meaning of field of view?

(DoD, NATO) The total solid angle available to the gunner when looking through the gunsight. Also called FOV.
(DoD, NATO) In photography, the angle between two rays passing through the perspective center (rear nodal point) of a camera lens to the two opposite sides of the format. Not to be confused with "angle of view."
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APAMilitary Dictionary (DoD). (2011). field of view. Retrieved September 22, 2026, from http://smartdefine.org/field_of_view/definitions/1961685
ChicagoMilitary Dictionary (DoD). 2011. "field of view" http://smartdefine.org/field_of_view/definitions/1961685 (accessed September 22, 2026).
HarvardMilitary Dictionary (DoD) 2011, field of view, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/field_of_view/definitions/1961685>.
MLAMilitary Dictionary (DoD). "field of view" 4 April 2011. Web. 22 September 2026. <http://smartdefine.org/field_of_view/definitions/1961685>
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