Friday, September 13, 2013

Camera History

Camera History

1. The camera obscura effect is achieved by a device that consists of a box or room with a hole in one side. Light from an external scene passes through the hole and strikes a surface inside where it is reproduced, rotated 180 degrees (thus upside-down), but with color and perspective preserved.

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. The first parts of modern camera that niepce invented was, film to create the first successful photograph, and the modern camera was born. A glass lens, a dark box, and film were invented.

4.  The way that modern cameras and Niepce's cameras are the same is that 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 don't use old fashioned plastic film, digital cameras capture the images with an electronic sensor called CCD.

6. Of all the shooting modes, Auto/Program is probably the most useful. Most people don't really want to learn about how a camera works, and point and shoot photography is the perfect solution.
The fully automatic (A)uto or (P)rogram mode is the default for most modern cameras. The photographer can simply aim, press the button, and almost be guaranteed a great image.

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

8. Sports- to freeze motion, camera will use the highest shutter speed possible. 

9. The "half-pressed" button should be used because:

  • faster camera response time
  • more control over focus
  • encourages better composition  
 10. Disabled Flash is whe there is 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. Auto-Flash
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

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17.  Longer shutter speeds = more light

18. shorter shutter speeds = less light

19.  The aperture determines how collimated the admitted rays.

20. You can adjust the aperture to Smaller F-stops numbers which will increase the amount of light.

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