The Camera

1) The camera obscura effect is where an image is projected. It is achieved by having a tiny hole in one wall of a dark room. The outside light is focused through the hole and projected upside down onto the wall opposite the hole.

2) In the 17th century high quality lenses were made because of a higher comprehension of optics by Isaac Newton and Christopher Huygens.

3) Film was added to the camera by Joseph Nicéphore Niépce in 1827.

4) Modern cameras still have light pass through a lens and expose on a film much like Niépce's camera.

5) Digital cameras use an electronic sensor called a CCD instead of the old plastic film that was used before it to capture images.

6) In Auto mode, the camera is in control of the exposure and flash. In Program mode, the user can control the exposure, flash and a few other features.

7) Portrait mode is used for taking pictures of people. It blurs out the background by using the aperture lens which is the fastest available lens setting.

8) Sports mode is used for taking pictures of fast moving objects. It freezes the action by using the highest shutter speed.

9) The half press lets the user focus the camera and set up the shot.

10) The symbol for no flash means that the flash is disabled. It is used when the user wants the photo to be taken in natural light.

11) Auto flash is the mode where the camera controls the flash and uses it if it thinks the shot needs more.

12) If there is too much light in a photo, it will appear washed out.

13) If there is not enough light in a photo, it will appear too dark.

14) A stop is a relative change of light in photography.

15) The new planet is one stop brighter if there are two suns instead of one.

16) The new planet is one stop brighter if there are four suns instead of two.

17) A longer shutter speed allows there to be more light in a photo.

18) A shorter shutter speed allows there to be less light in a photo.

19) The aperture controls how big the opening is on the way to the film.

20) You can increase the aperture to allow more light by having a smaller F-stop when adjusting it.