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Focal length
01
焦点距離, フォーカルレングス
the distance between the lens and the camera's sensor or film when the lens is focused at infinity, measured in millimeters, and affects the angle of view, magnification, and depth of field of the final image
What is "focal length"?
Focal length is the distance between the camera’s lens and the sensor or film when the lens is focused on a subject. It is measured in millimeters and determines how much of the scene is captured and how zoomed in or out the image will appear. A short focal length captures a wider view, making it useful for landscapes or large groups, while a long focal length zooms in on distant subjects, which is ideal for close-up details or wildlife photography.
focal length
n
例
The detachable lens on the camera can be swapped out for different focal lengths.
