Types, characteristics and uses of commonly used lenses?

lenses are generally classified according to focal length:

fisheye lenses; Macro lens; Wide-angle lens; Standard lens; Telephoto lens; Super telephoto lens; Zoom lens, etc.

fisheye lens: the viewing angle is 18 degrees, with large distortion and special purpose

Macro lens: shooting small objects at close range, such as small ants, etc.

Wide-angle lens: shooting landscapes and large scenes with infinite focal length

Standard lens: shooting landscapes and people, between wide-angle and telephoto lens: shooting close-ups of distant people and distant objects, such as sports competitions.