Digital images can be modified on the computers through Computer software. Now you can view yourself in front of Eiffel Tower or Times Square. These include models with features like LCD display, Video capture facility, zoom up to 30x, Pocket sizing, higher resolution and on the fly editing. These cameras can connect to computer through USB or Parallel ports. These cameras can carry 30 to 75 shots on a single Flash memory card.
Light enters the camera through a series of lenses.
The aperture determines the amount of light allowed into the camera. The shutter determines how much light is allowed through to the CCD after the picture is taken. The image hits a filter on the CCD that separates out red, green and blue light into separate color streams. The image then registered by hundreds of thousands of pixels, each composed of a red, green and blue color sensor. The amount of each color in a pixel is determined by the amount of light coming through the filter.