Photography means writing with light.
Subject and light source- Some form of light is required to illuminate the subject. Light falling on the subject is reflected in different directions and some of it will pass through the lens of the camera and form the image.The intensity of the light and the subject itself are very important factor for deciding the amount of exposure that is needed.
Lens:
Shutter:
Diaphragm:
Viewfinder:
Focal plane and film:
