While Point of View (POV) determines the perspective from which you view your subject, FOV, or field of view, determines how much of your subject you actually see and what's around it.
Much like POV, FOV can enhance or ruin your scene if too much or too little is captured in the frame.
You can easily test if your field of view is too narrow or too wide by asking someone to view your image or animation.
With your 3D application, you control the angle of vision through the spinner on a camera or with the FOV button when using a perspective view port.
You can animate it through a camera view just by changing the degrees over time.
Many novices, however, think that altering the angle of vision means that you are altering the camera's location, but this is not the case; you are actually altering the viewing area of the camera itself.
Altering the field of view in your 3D application also alters the focal length of the lens.
That is because, in your 3D application, both alter the same value.
If you want to keep the focal length the same, but have the camera closer to the subject, just use the Dolly button.
Keep in mind that the results are very different.
You will see how two different settings can produce completely different results from the same camera position.
So far, we have investigated what real cameras are all about.
But the question that most often comes up is "How well can real-world properties be matched up to cameras within your 3D application?" Fortunately, most effects can be duplicated.
Some are easy; some not so easy.
it is time to explore some of the key elements necessary for setting up and adjusting your cameras within your 3D application.