A camera is an optical instrument for recording images, which may be stored locally, transmited toanother location, or both. The images may be individusi still photographa or sequences of images consthuting videos or movies. The word camera comes from camera obscura, which means "dark chamber and is the Lath name of the original device for projecting an image of extemal reality onto a flat surface. The modem photographic camera evolved from the camera obscura. The functioning of the camera very similar to the A camera may work with the light of the visible spectrum or with other portions of the electromagnetic

Lunctioning of the human eye.

spectrum, A si camera is an optical device which creates a single image of an object or scono, and records it

on an electronic sensor or photographic film. All cameras use the same basic design: light entors an enclosed

box through a converging lens and an image is recorded on a light-sensitive medium

A shutter mechanism controls the length of time that light can enter the camera. Most photographic

cameras have functions that allow a person to view the scene to be recorded, allow for a desired part of

the scene to be in focus, and to control the exposure so that it is not too bright or too dim. A display, often a quid crystal display (LCD), permits the user to view scone to be recorded and settings such as ISO speed.

exposure, and shutter speed

A movie camera or a video camera operates similarly to a still camera, except it records a series static images in rapid succession, commonly at a rate of 24 frames per second. When the images are combined

and displayed in order, the Illusion of motion is achieved 1. What is the definition of camera based on the text above?

2 How does a still camera work?

3. What is the function of shutter? 4 Mention settings that can be set through LCD camera!

5. What is the special usage of movie camera?​