Camera types and Iconography

Camera work is expressive rather than naturalistic. Using weird angles and canted cameras are common in horror films. They also contain, like most films and trailers, close-ups and point of view shots to express the characters fear/worry and to make the audience involved, intrigued and tensed up. For example, 'The Blair Witch Project' repeats the use of the close-up to examine the horrified expressions, and 'Cloverfield' uses point of view and canted angles to make it seem like the audience is there.
Iconography: Visual aspects can signify and determine the genre. Red and Black colours are used on horror film posters usually, and blue filters are added to fit the genre. Blue filter is a digital colour correction used in the editing process for an outcome of an eerie effect. Film makers used to go through the process of using filters on lights and camera, or get the footage exposed just the right way. It was expensive and difficult so there was a limited amount of people who could use it.