Key Concepts
180 degree rule:
The 180 degree rule is used mostly in conversation. They are based on an imaginary straight line that is portrayed by the camera movements and angles. The image below shows that the camera must stay on one side of the imaginary line. Reasons for this consist of the audiences views, if the camera was to flip sides the whole conversation would too- this means the people look as though they have changed sides causing confusion to the audience.
Shot reverse shot:
This technique is very much like the 180 degree rule except it shows a person looking at something, then what a person is looking at and is finally followed by a similar image of them again usually the reaction the person makes. This shot can be used to show conversation, the placement of an object and many other things. A very good time for this to be used is during an 'over shoulder shot' that is best used in conversation.
Match on action:
This is used to show a gentle flow of movement and is in fact continuous showing one shot leading to another to give a clearer view on what is happening. They can use several camera angles and shots to show continuity. This skill can be used for many things such as: conversations, movements and many things more. If this goes wrong there can be a lot less flow in a story and the viewer may assume things just turn up at random or that events happen without actual knowledge.
