How to adjust the exposure in the later stage of mobile photography?

1. The aperture of the mobile phone cannot be adjusted.

2. The mobile phone can adjust the shutter speed and ISO.

In professional mode, or some apps, you can control the shutter speed and ISO.

3. Mobile phone automatic shooting mode, automatic shutter speed and ISO exposure control. Shutter speed varies from 1/7 to 1/ tens of thousands of seconds. ISO may be higher, from 50 to 5000. These two combinations can control the exposure to a great extent.

4. When a slow shutter is needed, the mobile phone passes through the "electronic aperture", which is also a calculation method, and many photos are synthesized to simulate the slow door effect.