Is it a photography course that everyone can understand?

Is it a photography course that everyone can understand?

1. Understanding the camera lens

Focus range

focusing ring

(Adjust focus control field)

(Adjust the focus position of the lens) Scene size)

Auto focus/IF

Focus switching

(Manual and autofocus switching)

Mikon

Maximum aperture value

00G8 24:70mm 1:2.8E

(e stands for lens type)

Zoom ring

(Adjust the focal length of the lens)

Lens bayonet mark

(When installing, the lens is aimed at the fuselage logo)

Current focal length

(The corresponding number is current anxiety)

2. The lens is divided into a constant aperture and a floating aperture.

1:4.5

The value is a constant aperture.

1:3.58-5.6

One value to another is the floating aperture.

Constant aperture:

Refers to the zoom lens can use its nominal maximum aperture in all focal lengths.

For example, EF24- 105mm, and the maximum aperture of F4.0 at 24mm is adjusted to

105mm, and the maximum aperture is still F4.0

Generally speaking, the lens with constant large aperture belongs to the professional lens series, and the lens

The quality of the lens is better than that of the floating aperture lens, and of course it is more expensive.

Floating aperture:

It means that the aperture of the lens will change with the change of focal length.

Such as ef18-135mm f3.5-5.6, and the maximum aperture at 18mm is

F3.5, at the end of 135mm, the maximum aperture becomes F5.6

3. The lens is divided into zoom lens and fixed focus lens.

14mm-35mm

50 mm

Zoom lens:

Refers to a lens with zoom function, such as EF24mm-70mmF2.8, which can be used for

Flexible change between 24 mm and 70 mm, this lens has strong adaptability and can

To cope with different occasions.

Fixed focus lens:

Refers to a lens without zoom function, such as EF35mmF 1.4, which can only be used at 35mm.

Focus, want to change the size of the subject in the lens, only by changing the photographer.

Distance from the object

Comparison between zoom lens and fixed focus lens;

Zoom lens has greater flexibility and adaptability.

Fixed-focus lenses often have larger apertures and higher image quality.

4. The lenses are classified according to the focal length segment.

The lens is divided into super wide-angle lens, wide-angle lens and standard lens in the focal length part.

Pan-tilt and telephoto lens

Focus classification:

Super wide angle: 16-24mm, very large deformation, very spatial picture.

Very strong, very deep.

Wide-angle: 24-35mm, with large deformation and prominent sense of space, which is more suitable.

When shooting on location, the four corners of the photo will have very beautiful dark corners.

Standard head: 50mm, close to the human eye angle, more realistic.

Medium telephoto: 70- 100mm, which is more suitable for portrait shooting, not only convenient.

Composition and perspective are more in line with people's visual habits.

Telephoto: 100-300mm, suitable for close-up portraits and outdoor scenes.

Good depth-of-field blur effect can be obtained.

5. The lenses are classified according to the focal length segment.

The lens is divided into super wide-angle lens, wide-angle lens and standard lens in the focal length part.

Pan-tilt and telephoto lens

Focus classification:

Super wide angle: 16-24mm, very large deformation, very spatial picture.

Very strong, very deep.

Wide-angle: 24-35mm, with large deformation and prominent sense of space, which is more suitable.

When shooting on location, the four corners of the photo will have very beautiful dark corners.

Standard head: 50mm, close to the human eye angle, more realistic.

Medium telephoto: 70- 100mm, which is more suitable for portrait shooting, not only convenient.

Composition and perspective are more in line with people's visual habits.

Telephoto: 100-300mm, suitable for close-up portraits and outdoor scenes.

Good depth-of-field blur effect can be obtained.

6. Low-power photographic lens

Macro lenses are 50mm, 55mm, 60mm, 85mm and 90 m.

M, 100 mm, 105 mm, 125 mm, 180 mm,

200mm and other different specifications, different specifications of macro lenses and

They all have different uses.

For example, 50mm and 55mm can 1: 1 remake the A4 paper size subject, if

Use 200mm to pull away from the main body, but shoot some Kun.

Insects and other small objects don't want to disturb the main body at the same time, and 200mm is very big.

Usefulness in portrait photography, macro lens is often used to shoot people and other games.

Close-up, the common macro lens on the market is100 mm.

Macro-macro lens is often used in product photography, close-up of people and local photography.

Shadow (don't use rangefinder, because rangefinder is not optical zoom, it is physical.

Scaling is equivalent to cropping a picture, which will affect the picture quality)