How a camera works

Capture
Reflected light from an object passes into a camera then onto a light sensitive surface.

Process
The captured image is turned into something we can see

Store
The image is put into something we can keep, such as a printed photograph.

Analouge Photography

1. Light hits the camera through the lens.
2. Light hits light sensitive film and reacts with it.
3. Film removed from camera and put into chemicals for developing into negative.
4. Negative projected onto photographic paper and printed, using more chemicals.

Digital Photography

1. Light enters the camera through the lens.
2. Signal from sensor converted into digital data by a processor.
3. Digital data stored as an image onto the storage medium on the camera.

Data Transfer Methods

USB
USB is a physical connection used by cameras and scanners. This is possibly the fastest option.

Removable Card
Images can be captured by a digital device onto a removeable card. These cards can be connected to a computer via a card reader.

WiFi
Some cameras use WiFi technology to send digital images to a camera.

Bluetooth
Mobile phones, PDA's and some digital cameras are able to send digital images through Bluetooth technology to other devices.