The Video Camera Objective How does a camera

The Video Camera

Objective �How does a camera work & the basic camera functions �Review the different types of cameras �How to set up a camera and tripod

Pieces & Parts �To make an image all cameras need 3 basic parts: The Viewfinder The Imaging Device The Lens

The Lens �It determines what you see �All lens are not the same! �Lens are the most expensive part of the camera and sometimes cost more than the camera itself! �They are classified in two ways: - Focal Length - Angle of View (wide & narrow) �A Zoom lens has a variable focal length

Zoom �Optical zoom - The zoom range: How close can you get from the farthest point - Optical zoom range is expressed in a ratio: 10: 1, 20: 1 etc. �Digital zoom - Also expressed in a ratio: 10: 1, 15: 1 etc - The focal length does not change; the image is magnified - The more you zoom in, the less sharp the image becomes

Optical vs. Digital Zoom

Iris �All lens have an iris �It allows how much light is coming into the lens �Acts like the pupil of your eye - In a bright scene, the less the iris is open - In a dim scene, the iris opens to let more light in �Aperture: Adjustable hole in iris

Beam Splitter CCD Splits light into Red, Green & Blue CCD

The Viewfinder

Types of Cameras � Camcorders - Camera & recording device are combined � ENG/EFP Cameras - Camera is attached to a separate recording device by a cable - Portable � Studio Cameras - Stationary in studio - High quality - Uses camera chain: camera, power, sync & camera control unit

Video Connectors �BNC �S-Video �RCA phono �Firewire