Focal Length | Definition, Formula & Examples
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Study.comNichole Miller
Focal Length | Definition, Formula & Examples
Understand the focal point definition and the focal length formula. See the unit of focal length and focal length examples to learn how to calculate focal length.
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Camera lenses are typically described by their focal lengths first and foremost, but what exactly does "focal length" refer to? In a nutshell, a lens' focal length refers to its angle of view (the amount of coverage provided by the lens). Shorter focal lengths give a wider angle of view, while longer focal lengths deliver the opposite. Focal lengths also impact magnification – shooting with a 24mm lens makes distant objects appear much smaller compared to shooting with a 105mm lens. These factor
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