3-21.
What is the primary function of the
camera shutter?
1.
To control the duration of
exposure
2.
To control subject movement
3.
Both 1 and 2 above
4.
To control depth of field
3-22.
When increasing the camera shutter
speed, you must take what action to
expose the film properly?
1.
Close down the aperture
2.
Open up the aperture
3.
Add an ND filter
4.
Change the film-speed
setting to a higher number
3-23.
What sacrifice is made when you
increase the camera shutter speed?
1.
Camera movement
is more apparent
2.
A shorter focal-length
lens must be used
3.
Some depth of field is lost
4.
Image sharpness
3-24.
You must stop subject motion but
cannot afford to loose depth of
field.
Which of the following
actions should you take?
1.
Select a faster film
2.
Increase the camera-
to-subject distance
3.
Select a shorter focal-
length lens
4.
All of the above
3-25.
A shutter speed of 1/250 second is
required to freeze image motion
acceptably.
Which of the following
shutter speeds can also be used
to record the same image motion?
1.
1/30
2.
1/60
3.
1/125
4.
1/500
19
3-26.
When handholding a camera
with a 100mm lens, what is
the slowest shutter speed you
should use?
1.
1/30
2.
1/60
3.
1/125
4.
1/250
3-27.
When you are photographing a moving
object, which, if any, of the
following shutter speeds stops
image motion?
1.
1/250
2.
1/500
3.
1/1000
4.
None of the above
3-28.
Which of the following factors
limits the time the image is
allowed to move across the film
plane?
1.
The interval of exposure
2.
The direction of subject
movement
3.
Subject speed
4.
Lens focal length
Figure 3A
IN ANSWERING QUESTION 3-29, REFER TO
FIGURE 3A.

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