TEST for AS 289/2

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Part I. Technical Review   (40 points)

Suppose your camera has the following settings:

aperture f1.8  f2.8  f4  f5.6  f8  f11  f16  f22

shutter    B  1   2   4    8   15   30  60  125  250  500   1000

(It is a manual slr film camera with a 50mm 1:1.8 lens.)

1. Which f-stop allows the most light in?
2. Which allows the least?
3. Which will give the most depth of field?
4. What does depth-of-field mean?

5. Where is the aperture diaphragm  located?
6. How is aperture measured?
7. Which f-stop allows half the amount of light as f5.6?
8. Which allows twice the light as f5.6?
9. What does focal length refer to?
10. Besides aperture, what is another factor that affects depth of field?
11. Where is the depth of field scale located (on a traditional slr)?
12. What is the shutter and what does it control?

13. How is shutter speed measured?
14. Where is the shutter located?
15. What kind of shutter speed is needed in low light conditions?
16.  What does “B” refer to?
17. What is the safest slow shutter speed without a tripod?
18. Which ss allows twice as much light as “60”(1/60)?
19. Which allows half as much light as “60”?
20. (4 points) On a given day, your camera gives you a correct reading of f4  at 250.  What other configurations would give you the same amount of light and a greater depth of field? (list four ways).

21. Which would give you the same amount (as above) of light and allow you to create a blurred picture of a speeding car?

22. Which shutter speed  would give you the same amount of light (as above, question 20) at  f2.8?

23. On a shadowy area with a bright sky,  how would you insure a correct exposure of a subject in shadow?

24. (4 p)Which is a better setting, f4 at 1/60, or  f 16 at 1/4 ? Say why.

25. What does ISO refer to?