TIP: Autofocus

There are two ways to engage the autofocus (AF) on a windows phone device. You can either:

1. Use the shutter release button. Press the shutter half-way. This will utilise the center AF area. Once on focus you will hear a beep to indicate that you can reframe your shot. The press down on the shutter button to take the shot.
2. Tap on the subject you want to focus on. This will cause the camera phone to utilise a smaller AF area. It also takes the shot once focusing is complete.

One thing I have noticed with the AF system is that the tap to autofocus is much less reliable than the shutter button method. Here are two shots taken at the same time. You can clearly see the difference.

Tap AF used to take this frame. The focus point was the eyes.

Center AF used to focus. Once focused the frame was composed and shot taken.

100% crops comparing the two AF modes.