Camera history and information

1. Explain the “camera obscura” effect. How is it achieved? it is latin for dark chamber  an optical device that projects an image of its surroundings on a screen. It is used in drawing and for entertainment, and was one of the inventions that led to photography and the camera. The device 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, upside-down, but with color and perspective preserved. The image can be projected onto paper, and can then be traced to produce a highly accurate representation.

2. What invention during the 17th Century helped man get a step closer to creating the modern camera?  glass lenses

3. What were the parts of the first modern camera invented by Niepce? A glass lens, a dark box, and film.

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

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



6. What is the difference between the Auto Mode and the Program mode?auto mode takes care of everything while program mode you can control the focus and flash manually
7. What is the Portrait mode used for? How does it work?to blur out the background of a photo. camera will use fastest available lens

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, triggering the following things to happen:

10.What does this symbol mean? no flash

When would you use this?to make the photo more dramatic and if the lighting is already good enough

 11.What does this symbol mean?
In most camera modes, Auto-flash is enabled by default and will automatically fire if the camera thinks it needs more light.

When would you use this? when its too dark

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.”s 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 sons instead of one? 2

16. How many stops brighter is the new planet if there are four sons instead of two? (Hint: the “show answer” feature is wrong).6

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

18. What affect does a shorter shutter speed have?less light

19. What does the aperture control?light

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