Saturday, October 5, 2013

Camera history and Camera parts

The effect came to be known as the "camera obscura" which is Latin for "dark room". This was the first camera. The hole acted like a lens, focusing and projecting light onto the wall of the dark chamber.Isaac Newton and Christian Huygens perfected the understanding of optics and the process of making high quality glass lenses.A glass lens, a dark box, and film. New cameras are very easy to use, just point and shoot. The camera's built-in computer handles focus and exposure so you don't have to. A digital camera is still composed of a lens, a dark box, and film.Old fashioned cameras have one mode.. manual. Camera settings would have to be figured out by the photographer, along with focus.
To attempt to blur out the background, camera will try to use the fastest available lens setting (aperture). The sports mode t
o freeze motion, camera will use the highest shutter speed possible.
Point the camera at the subject and half-press. Wait for focus lock. While focusing, the camera will show a blinking focus indicator (usually a green dot). When you hear a beep and the indicator stops blinking, the camera is telling you it's ready to go
  
Auto- Flash -

In most camera modes, Auto-flash is enabled by default and will automatically fire if the camera thinks it needs more light.




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