2009

longer the lens, the narrower the FOV. The shorter the lens, the wider the
FOV.
Relationship Between FOV and Perspective
Short focal lengths (wide FOV) emphasize the distortions of perspective,
making objects seem in-depth, looming toward the viewer.
Long focal lengths (narrow FOV) reduce perspective distortion, making objects
appear flattened and parallel to the viewer.
Upper left: Long focal length, narrow FOV
Lower right: Short focal length, wide FOV
The perspective associated with 50 mm lenses appears normal, partly because
it is close to what the eye sees, and partly because such lenses are so widely
used for snapshots, news photos, cinema, and so on.
Differences Between Camera Objects and Real-World Cameras
Many other controls on real-world cameras (such as those for focusing a lens,
and advancing film) aren’t needed for computer rendering and have no
counterpart in the camera objects.
Using Cameras | 5209