Physics textbook photography

The aperture value is f11.422.845.6811622.

The shutter value is12481530 60125 250 500.

The law of exposure combination is a change.

Aperture 1 1 to 5.6 (the larger the aperture, the smaller the value, and the larger the aperture, the greater the light input), and the corresponding shutter speed is two steps smaller. Countdown from 15, and the second step is 60 (the later the shutter value, the faster the speed and the smaller the light).

The shutter speed should be 1/60s, that is, the exposure combination is f5.6 and 1/60.