How does a SLR Nikon d90 portrait focus?

1. When using a portrait lens with medium telephoto and large aperture, the central single-point autofocus is usually selected. Wide-area autofocus is difficult to control.

2. With the central focus on people's eyes, half-pressing the shutter to lock the focus and re-composing can make eyelashes and eyeballs clear. According to the photographer's intention, you can also choose other parts to focus.

3. Some people are used to manually selecting five focus points, and skilled operation is not bad.