1-45.
1-46.
1-47.
1-48.
1-49.
Which of the following f/stops
represents the largest aperture?
1.
f/5.6
2.
f/8
3.
f/22
4.
f/32
You have changed the lens setting
from f/5.6 to f/16. What term
describes the action you have
taken?
1.
Stopping down
2.
Opening up
3.
Racking out
4.
Sliding back
You have changed the f/stop setting
from f/16 to f/8. What amount of
light is admitted to the film
plane?
1.
One half
2.
Two times
3.
One quarter
4.
Four times
A lens set to f/8 produced a
correct exposure in 1 second.
When you set the lens at f/4,
what is the correct exposure
time, in seconds?
1. 1
2. 2
3.
1/2
4.
1/4
Of the following f/stops, which
one is not a standard, full f/stop?
1.
f/l
2.
f/2.5
3.
f/5.6
4.
f/45
Learning Objective:
Identify
factors that affect the means
in which a lens focuses an image.
Figure 1A
IN ANSWERING QUESTION 1-50, REFER
TO FIGURE 1A.
1-50.
What object is represented as
being the greatest distance from
the camera?
1. A
2. B
3. C
1-51.
The principal focal plane is lo-
cated a total of how many inches
behind a 3-inch focal-length lens?
1. 1.5
2. 6
3. 3
4. 4
1-52.
As an object moves closer to the
lens, what distance, if any, must
the film plane to the lens change
in order to keep the image in sharp
focus?
1.
It must be increased
2.
It must be decreased
3.
None
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