How to use the exposure meter correctly in film photography? How to measure the light ratio of human face

On the premise of sufficient light: 1, determine a suitable aperture (according to narrative requirements, the relationship between foreground and background) and filter.

2. Determine the appropriate light ratio. One notch 1: 2, two notches 1: 4, and three notches 1: 8 ~ (depending on the film style and narrative content)

3. Spread background light to block stray light. Illuminator measures the ambient illumination level. Increase or decrease as needed.

4. All lights are fully turned on, blocking the auxiliary light, and the illuminance of the main light at the position of the person is measured by the illuminance meter. Increase or decrease the amount of main light as needed.

5. Strictly block the main light and backlight, and measure the auxiliary illumination. Add or reduce auxiliary lights as needed. (The milky white ball can expand and contract, but the state of the same scene should be unified. )

6. The small decorative light source in the background can be measured and adjusted with a luminometer.

7. Add and adjust small decorative light sources, such as hook edge lights, eye lights and small dark lights.

8, review the smooth hole, check the machine status. Action.

Detailed steps: /question/26876832