Camera History

1. The hole acted like a lens, focusing and projecting light onto the wall of the dark chamber. It was achieved by using the inside of a  completely dark room, and a tiny hole is created in one wall. Through the hole light is focused, and the outside scene is projected (upside down) on the opposite wall.
2. In the 17th century, the modern camera came one step closer when Isaac Newton and Christian Huygens perfected the understanding of optics and the process of making high quality glass lenses.
3. Then in 1827 Joseph Nicéphore Niépce added the final touch. He added *film* to create the first successful photograph, and the modern camera was born.
4. It's comforting to know that even the latest digital cameras work the same way as their ancestors:
Light passes through the lens, into the camera, and exposes the film.
5. Replacing old-fashioned plastic film, digital cameras capture the images with an electronic sensor called a CCD. Photographs are stored on reusable computer memory devices.The result is that modern photography is cheaper than it has ever been before
6. Old fashioned cameras have one mode.. manual. Camera settings would have to be figured out by the photographer, along with focus. typical camera mode dial

Modern cameras can do all this automatically, but sometimes they need help. By choosing a shooting mode you give the camera hints about what you want, and it will try to deliver. 7. Take picture of people, It works by attempting to blur out the background, camera will try to use the fastest available lens setting. 8.To take a picture of something moving at a fast rate To freeze motion, camera will use the highest shutter speed possible.   9. Using the half-press is easy, aim your camera directly at the subject and gently press the shutter release button until the camera comes "alive". 10. No flash. There are many cases where you may not want flash at all. The mood of the photograph can sometimes be more dramatic when the natural light is used. 11. In most camera modes, Auto-flash is enabled by default and will automatically fire if the camera thinks it needs more light. 12. Too much light and the picture will be washed out. 13. Not enough light and the picture will be too dark. 14. The term "stop" is used in every aspect of photography to represent a relative change in the brightness of light. 15. One stop 16. Two stops 17. Longer shutter speeds = more light    18. Shorter shutter speeds = less light 19. Before light reaches film, it must pass through an opening called an "Aperture". The aperture is like a pupil. You can control the aperture by setting the "Aperture Opening", also known as an F-Stop. 20.Smaller F-stops numbers = larger openings larger openings = more light