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Focal length is a measure of how strongly an optical system converges or diverges light. Learn the different types of focal length, such as effective, front, rear, and back focal length, and how they are related to optical power and magnification.
18 Σεπ 2023 · Learn what focal length is and how it affects your photos. Find out how to choose the right focal length for your style of photography and how sensor size and crop factor change the field of view.
Focal length is the distance between the lens center and the image sensor, and it affects the angle of view and perspective of an image. Learn how focal length works, how it differs from focal distance, and how to use it for various photography genres.
Focal length is the optical distance from the lens to the sensor or film at the focal plane. It determines the angle of view and magnification of a lens, and affects the type of photography you can do.
Focal length is the optical distance from the lens to the sensor that determines how wide or tight your shot is. Learn how to choose the right lens for different types of photography and how to practice with prime lenses.
Focal length is the number that describes how wide or tight a lens is and how much of a scene it can capture. Learn how focal length affects angle of view, depth of field, distortion and compression, and how to choose the best focal length for different types of photography.
Focal length is the distance in millimeters between this point of convergence and the sensor or photographic film of the camera it is attached to. As you can see from Figure 1, a shorter focal length creates a wider angle of view, which means the subject appears smaller in the resulting image.