Tuesday, September 11, 2012

Camera History and Information

1. The "Camera Obscura", first camera which is a tiny hole through a wall in a dark room, and the light is focused through the hole, so the hole is acted like a lens.

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. In 1827 Joseph Nicéphore Niépce added the final touch. He added *film* to create the first successful photograph, and the modern camera was born, A glass lens, a dark box, and film.

4. Light passes through the lens, into the camera, and exposes the film. And guess what? The end result is still a photograph.


5. Digital cameras capture the images with an electronic sensor called a CCD

6. Auto: The camera will completely control flash and exposure. On most cameras this is labelled "auto", on others simply "A". Some cameras only have (P)rogram.
    Program: automatic-assist, just point and shoot. Unlike full auto mode, you can usually control flash and a few other camera settings. 

7. To attempt to blur out the background, camera will try to use the fastest available lens setting (aperture).

8. To freeze motion, camera will use the highest shutter speed possible. 

9. 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..

10. No flash. When there is already enough light

11. Auto-flash is enabled by default and will automatically fire if the camera thinks it needs more light. If the picture 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. Used in every aspect of photography to represent a relative change in the brightness of light.

15. 1.

16. 2

17. More Light

18. 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. It does so by closing up to restrict light, and opening up to let it through.

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