What's the difference between automatic focusing and manual focusing when taking pictures with a SLR camera? What is the best aperture to adjust according to the prospect?

1, auto focus is a way to use the principle of object light reflection, the reflected light wave is accepted by the sensor on the camera, and the computer processes it to drive the electric focusing device to focus.

2. The aperture of the foreground should be adjusted to 1 1 to 16.

3. Manual focusing can deal with all kinds of situations, especially some cases where autofocus can't focus or focus incorrectly, such as the color contrast between the subject and the background is too small, the picture area occupied by the subject is too small, or the subject is at the edge of the picture.

4. But manual focusing needs accurate observation and judgment and long-term practice, otherwise manual focusing is not accurate. Moreover, manual focusing takes a lot of time, and it is easy to miss the best photo opportunity.

5, autofocus focus fast, more suitable for snapshot, especially in some news photography and emergencies, only autofocus can ensure not to miss every important moment. However, in some special cases, autofocus will cause focusing errors or even inability to focus, such as insufficient light.