+Focal length defines the optical distance from a [Lens](/wiki/lens) to its point of focus, fundamentally shaping how a [Camera](/wiki/camera) perceives the world. It determines the magnification and the extent of the visible scene, directly influencing perspective.
+## See also
+- [Aperture](/wiki/aperture)
+- [Depth of Field](/wiki/depth_of_field)
+- [Magnification](/wiki/magnification)
... 1 more lines