Focal Length (n.) The distance between the camera’s lens and its focal point when focused on a subject at infinity, typically measured in millimeters. In mobile photography, focal length determines the field of view and magnification of an image. Smartphones often have multiple lenses with different focal lengths, such as ultra-wide, wide, and telephoto. Understanding focal length helps mobile photographers choose the right lens for their desired composition, whether it’s capturing expansive landscapes or zooming in on distant subjects.
Focal Length
