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'''Field of view''' or '''FOV''' is the extent of observable world at any given moment. Field of view is usually measured in degrees. Humans have 180 degrees FOV when looking directly in front and 270 degrees with eye rotation. The higher an [[HMD]]'s FOV is, the further the virtual world will extend to your edge of vision.
In [[VR]], there are two types of FOVs: [[#Display FOV|Display FOV]] or dFOV and [[#Camera FOV|Camera FOV]] or cFOV.
