How to open a wide angle on iphone 12?

Step 1: After entering the camera, the camera will appear from the default perspective, as shown in the following figure:

Step 2: Click 1x, as shown below:

Step 3: Change the camera to 0.5x, as shown in the following figure:

Step 4: Compared with the previous perspective, the camera's perspective is obviously expanded, as shown in the following figure:

Step 5, set the wide-angle lens of the mobile phone, as shown in the following figure: