Change the field of view of the camera either by using the FOV or the focal length slider —they do the same, but the one works in degrees and other in millimeters.
Additional features
Open the panel by pressing on the three lines button on the right side of the camera.
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Turn on & off the post effects
Set the depth of field
Set the focal length in millimeters instead of degrees
Adjust smoothness of movements when recording in real-time