The Camera

My Camera

1. Explain the “camera obscura” effect. How is it achieved?

Inside a completely dark room, 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. What invention during the 17th Century helped man get a step closer to creating the modern camera?

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. What were the parts of the first modern camera invented by Niepce?

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.What do modern digital cameras have in common with Niepce’s camera?

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

5. What do digital cameras use to capture an image?

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. What is the difference between the Auto Mode and the Program mode?

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. What is the Portrait mode used for? How does it work?

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

8. What is the Sports mode used for? (not just sports) How does it work?

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

9. Why should you do a half press on the trigger button?

If the subject is somewhat off-centre, the auto-focus may be fooled. You have probably seen this effect many times before. A half-press will tell the camera that you're almost ready to take a shot and to be prepared.

10. What is 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.What is 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. What happens to your photo if there is too much light?

Too much light and the picture will be washed out.

13. What happens to your photo if there is not enough light?

Not enough light and the picture will be too dark. 

14. What is a “stop.”

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

15. How many stops brighter is the new planet if there are two suns instead of one?

1 stop

16. How many stops brighter is the new planet if there are four suns instead of two?

2 stops

17. What affect does a longer shutter speed of have?

Longer shutter speeds = more light

18. What affect does a shorter shutter speed have?

shorter shutter speeds = less light

19. What does the aperture control?

The aperture controls brightness 

20. When adjusting the aperture, how can you increase the amount of light?

Smaller F-stops numbers = larger openings

larger openings = more light