A lens designed to have a long focal length is called a

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A telephoto lens is designed to have a long focal length, which allows for magnification and a closer view of distant objects. Telescopes are also designed to have long focal lengths, but they are not typically used for photography. Short lenses have a short focal length and a wide-angle of view, while wide-angle lenses have a wider field of view than normal lenses but still have a shorter focal length than a telephoto lens.

A Lens Designed to Have a Long Focal Length Is