Put simply, focal length is the distance between a camera sensor (or film) and a lens’s point of convergence.

Camera lenses explained: Prime and zoom lenses Prime lenses are lenses that have a fixed focal length, whereas zoom lenses allow you to change between focal lengths without changing lens.

Discover how these focal lengths can transform your portrait photography – and how each one shapes the way your subject is ...

Focal length is the optical distance in millimeters between a camera lens and the sensor or film. It determines the height and width of the scene being captured, known as the "field of view." A ...

Simply put, the focal length defines the camera’s field of view and “magnification.” Longer focal lengths narrow the field of view and increase magnification. This results in a zoom effect.

This means that you can multiply the focal length of lenses used on that camera by 2 to get the full-frame equivalent, so the Olympus camera’s 12–40mm zoom lens produces the same perspective ...

Knowing how much of your scene you can capture at each lens' focal length is a conundrum every photographer has come up against.

Aperture & Focal Length Aperture refers to how wide or narrow the opening is in the camera lens, controlling how much light enters the camera.

Usually, a longer focal length equates with a longer lens, which is why “zoom” camera lenses of 300mm or more are often elongated and heavy.

In video, we have moved closer too. Whereas we would use long focal length lens and a wide aperture to let the background fall out of focus when shooting an interview, that same focal length on a ...