Camera Techniques

In English we are doing film studies. In the topic we have to study what each type
of camera techniques there are. I created a visual dictionary to show my learning.
The thing I am wondering about this is why are there so many different types of shots?
and How long would it take to make a film if you had to use all of these camera techniques.

Close up:

A close up shot in film is a shot that tightly frames a person or an object 

Medium close up

A medium close up is a tighter shot than a medium shot but still not as tight as a close up 

Medium shot

                     A medium shot is captured at a medium distance making it so some of the background can be seen

Mid shot

A shot taken at a medium shot 

Long shot

A long shot is usually a shot the show the whole object or human intended to place in it some relation to
it surroundings

Eye level

The most common camera angle

Pan

A pan shot is when you swivel a still or video camera horizontally from a fixed position

Tilt

when the camera moves up and down . Used to explore a location or character.

Tracking

When the camera follows a moving subject/ camera moves with towards or away from the subject.

Overhead

Lengthens the dramatic tensions 

Over the shoulder

from behinf the persons shoulder. Gives a sense of involvement

Mise en scene