Must learn articles about camera lenses? Detailed description of lens classification

Beginners who know little about photography must see it.

Classification of lens

Zoom lens:

A lens that can change the focal length within a certain range and has multiple fields of view.

24-105mm zoom lens

Fixed focus lens:

There is only one fixed focal length lens, only one focal length and one field of view.

50 mm standard fixed focus lens

camera lens

Different focal lengths

Is zooming possible?

Fisheye focal length <16mm

Super wide-angle focal length

The standard focal length is 50 mm

Wide-angle focal length 24mm-35mm

The telephoto focal length is 70mm-200mm.

Super telephoto focal length > 200mm.

Variable distance

zoom lens

Medium aperture (F3.5-F5.6)

deformed

Suitable for shooting scenery

Main lens

fixed focus

Large aperture (F 1.2-F2.8)

Small deformation

Suitable for portrait shooting

How to choose the focal length

Super wide-angle lens:

The focal length is below 2 1mm, and this lens has a large angle of view, which is very suitable for shooting large scenes and scenery themes.

wide-angle lens

Generally, the focal length is between 24 and 24-35mm, and people with buildings or exaggerated effects can be photographed.

standard lens

Generally, the focal length is between 24 and 24-35mm, and people with buildings or exaggerated effects can be photographed.

long shot

Common telephoto lenses usually have a focal length of 70-200mm, which can be used to shoot wild animals and concerts in Idol Worship.

Influence of lens focal length on visual field

Wide field of vision

24 mm

35 mm

Narrow field of vision

85 mm

135mm

The larger the focal length, the narrower the field of view.

Narrow one's vision

wide-angle

24 mm 35 mm 85 mm 135 mm

Long feet

Broaden your horizons

The smaller the focal length, the wider the field of view.