Photographic gear conversion

It's quite troublesome to say

Actually it's very simple.

Aperture gear

Generally expressed by F.

1.0

1.4

2.0

2.8

4.0

5.6

8.0

1 1

16

22

32

Each value differs by one step.

Shutter device

Generally represented by T.

1/2

1/4

1/8

1/ 15

1/60

1/ 125

1/250

1/500

1/ 1000

Each value differs by one step.

International Organization for Standardization (ISO)

gear

100

200

celebrity

Eight hundred

1600

3200

Each value differs by one step.

take for example

For example, after taking photos and measuring light,

Tetralogy of Fallot

T 1/60

International Organization for Standardization (ISO)

100

If you set the camera at F4.

T 1/ 125

ISO200

The effect is the same.

light ratio

Only in the case of mixed light.

Often used in shed shooting.

Is the ratio of the amount of light reflected by two kinds of light on the same object.