Which part of the camera is responsible for changing the field of view through zooming?

The lens of a camera is specifically designed to change the field of view through zooming. When you zoom in or out, you are adjusting the focal length of the lens, which alters how much of a scene is captured. A zoom lens can bring distant subjects closer or allow you to take in a wider scene by changing its focal length, thereby affecting the composition of the shot.

In contrast, the body of the camera houses the internal mechanisms and electronics but does not directly impact the field of view. The viewfinder is used for framing and composing your shot but does not change the zoom level. A stabilizer is a tool to reduce camera shake and ensure steady shots, but again, it does not influence zoom functions. Therefore, the lens is the essential component when it comes to manipulating how much of the scene you can see through the camera.