Camera Angles

Camera angle always refers to a way a shot is composed. And there are many different types of camera angles :

Eye Level

The most common view. It shows subjects as we would expect to see them in reall life.

High Angle

A high angle shows the subject from above, i.e. the camera is angled down towards the subject. This has the effect of diminishing the subject, making them appear less powerful, less significant or even submissive.

Birds Eye

The scene is shown from directly above. This is a completely different and somewhat unnatural point of view which can be used for dramatic effect or for showing a different spatial perspective.
In drama it can be used to show the positions and motions of different characters and objects, enabling the viewer to see things the characters can't.
The bird's-eye view is also very useful in sports, documentaries, etc.

Oblique/Canted Angle

Sometimes the camera is tilted (ie is not placed horizontal to floor level), to suggest imbalance, transition and instability (very popular in horror movies). This technique is used to suggest POINT-OF-View shots (ie when the camera becomes the 'eyes' of one particular character,seeing what they see — a hand held camera is often used for this.

Framing or shot length

Extreme long shot

 

Extreme Long Shot

This can be taken from as much as a quarter of a mile away, and is generally used as a scene-setting, establishing shot. It normally shows an EXTERIOR, eg the outside of a building, or a landscape, and is often used to show scenes of thrilling action eg in a war film or disaster movie. There will be very little detail visible in the shot, it's meant to give a general impression rather than specific information.

Long Shot

This is the most difficult to categorise precisely, but is generally one which shows the image as approximately "life" size ie corresponding to the real distance between the audience and the screen in a cinema (the figure of a man would appear as six feet tall). This category includes the FULL SHOT showing the entire human body, with the head near the top of the frame and the feet near the bottom. While the focus is on characters, plenty of background detail still emerges: we can tell the coffins on the right are in a Western-style setting, for instance.

Close-Up

This shows very little background, and concentrates on either a face, or a specific detail of mise en scène. Everything else is just a blur in the background. This shot magnifies the object (think of how big it looks on a cinema screen) and shows the importance of things, be it words written on paper, or the expression on someone's face. The close-up takes us into the mind of a character. In reality, we only let people that we really trust get THAT close to our face - mothers, children and lovers, usually - so a close up of a face is a very intimate shot. A film-maker may use this to make us feel extra comfortable or extremely uncomfortable about a character, and usually uses a zoom lens in order to get the required framing.

Extreme Close-Up

As its name suggests, an extreme version of the close up, generally magnifying beyond what the human eye would experience in reality. An extreme close-up of a face, for instance, would show only the mouth or eyes, with no background detail whatsoever. This is a very artificial shot, and can be used for dramatic effect. The tight focus required means that extra care must be taken when setting up and lighting the shot - the slightest camera shake or error in focal length is very noticeable