Wednesday, September 11, 2013

the camera history

1:  the camera obscure affect his when inside a completely dark room a ring hole is created in now wall.  trough the hold 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:

A glass lens, a dark box, and film. 

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. And guess what? The end result is still a photograph.

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 (and more environmentally friendly) than it has ever been before.
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.

7Portrait 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.

9This is an easy yet essential skill for beginners to learn. The "half-pressed" button is helpful in many ways, including:
  • faster camera response time
  • more control over focus
  • encourages better composition
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". If you want to take the shot, press down until the camrea fires.

10:Disabled Flash 
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. Not enough light and the picture will be too dark. A good photograph depends on calculating the exposure settings that will give the film the "right" amount of exposure.

13:A good technical exposure will produce a final image that accurately represents the original scene.. Film is light sensitive, and if the exposure is too dark or too bright, the result will not look like "real life".

14:The term "stop" is used in every aspect of photography to represent a relative change in the brightness of light.

15: its is one steps brighter with a planet with two suns 

16: if there was four suns the new planet is two stops brigther

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: make  alarger openings = more light

No comments:

Post a Comment