CTVA 300 Exam #2 UPDATED ACTUAL Questions and
CORRECT Answers
foot candle an international unit that represents the intensity of light from a single
standardized candle at one foot's distance. // a unit of measurement for
illuminance, indicating how much light is received on a surface.
exposure the quantity of light or other radiation reaching a photographic film, as
determined by shutter speed and lens aperture
aperture a variable diameter opening at the base of each film lens through which light
travels
open aperture when the diameter of the aperture is bigger/open, allows more light to come in
closed aperture when the diameter of the aperture is small, allows less light to come in
t-stop the amount of light transmitted through the opening in the lens
underexposure when an image is exposed with less than the standard amount of light falling on
the subject, low light in a photo
overexposure when an image is exposed with more than the standard amount of light falling on
the subject
How many foot candles of light are there in a typical between 50 and 70 foot candles of light falling on objects throughout the room
CSUF classroom? in the sunlight at 3 pm on a clear day?
sunlight: between 8,000 and 10,000
, How does a reflective light meter work? an incident light Reflective: measures the light reflecting off a subject, requires the
meter? cinematographer to point the meter at the subject they wish to measure.
Incident: measures the light falling on the subject, the cinematographer stands
near the subject and aims the white bulb at the top of the meter toward the
camera.
What three factors influence an exposure? light, the nature of the film stock, and the camera's lens.
What are some differences between a slow and a fast film Slow: lower ASAs or ISOs are less sensitive to light, requiring more light than a fast
stock? stock in order to make a properly exposed image.
Fast: higher ASAs or ISOs, are more sensitive to light. This means they require less
light in order to make a properly exposed image (tend to have more grain).
Describe the difference between T/16 and T/4, T/2.8 and T/16 is 4 stops more open than T/4
T/4, T/5.6 and T/11 T/2.8 is 1 stop more open than T/4
T/5.6 is 2 stops more open than T/11
The smaller the number the more open it is, the bigger the number the more
closed it is.
What are the qualities of an underexposed image? an An underexposed image will be darker than a normally exposed one. And that
overexposed image? image will have considerably less detail in the shadow areas.
An overexposed image will be whiter than a normally exposed one. Highlights
may "blow out", there may be halo effects, and there will be a generally "washed
out" look to the image.
What causes the silhouette effect in the image on the top the cinematographer decided to expose the background and not Mr. Lavant
of page 8 of this unit? leaving him and the chair underexposed resulting in a middleground silhouette.
How do the filmmakers use exposure to structure the The subjects in the husband's dream are regularly severely overexposed. In the
materials in scene from Hour of the Wolf linked above? most overexposed areas of the frame, like those of the boy's face and shoulder,
we can see no detail. His face and upper torso are simply a swathe of white.
Contrast that with the wife's reaction to this horrifying tale. So underexposed we
can barely make her and her expression out.
What are the effects of the change of aperture during the the image goes from radically overexposed (the subject looks like she's been in a
shot linked above from Hélas pour moi on the image? nuclear explosion at the start of the scene) to radically underexposed (the final
frames seem to take place in darkest night).
Notice as the aperture closes the depth-of-field, the focus increases (watch, for
instance, how the outline of the leaves in the top right of the frame become
sharper and sharper over the course of the shot, as does the detail in the water
behind the actress).
focal length the distance (measured in millimeters) between the optical center of the lens and
the point in the camera where the image is focused
fixed lens (prime lens) a lens with a single focal length that does not zoom, offering high quality images
CORRECT Answers
foot candle an international unit that represents the intensity of light from a single
standardized candle at one foot's distance. // a unit of measurement for
illuminance, indicating how much light is received on a surface.
exposure the quantity of light or other radiation reaching a photographic film, as
determined by shutter speed and lens aperture
aperture a variable diameter opening at the base of each film lens through which light
travels
open aperture when the diameter of the aperture is bigger/open, allows more light to come in
closed aperture when the diameter of the aperture is small, allows less light to come in
t-stop the amount of light transmitted through the opening in the lens
underexposure when an image is exposed with less than the standard amount of light falling on
the subject, low light in a photo
overexposure when an image is exposed with more than the standard amount of light falling on
the subject
How many foot candles of light are there in a typical between 50 and 70 foot candles of light falling on objects throughout the room
CSUF classroom? in the sunlight at 3 pm on a clear day?
sunlight: between 8,000 and 10,000
, How does a reflective light meter work? an incident light Reflective: measures the light reflecting off a subject, requires the
meter? cinematographer to point the meter at the subject they wish to measure.
Incident: measures the light falling on the subject, the cinematographer stands
near the subject and aims the white bulb at the top of the meter toward the
camera.
What three factors influence an exposure? light, the nature of the film stock, and the camera's lens.
What are some differences between a slow and a fast film Slow: lower ASAs or ISOs are less sensitive to light, requiring more light than a fast
stock? stock in order to make a properly exposed image.
Fast: higher ASAs or ISOs, are more sensitive to light. This means they require less
light in order to make a properly exposed image (tend to have more grain).
Describe the difference between T/16 and T/4, T/2.8 and T/16 is 4 stops more open than T/4
T/4, T/5.6 and T/11 T/2.8 is 1 stop more open than T/4
T/5.6 is 2 stops more open than T/11
The smaller the number the more open it is, the bigger the number the more
closed it is.
What are the qualities of an underexposed image? an An underexposed image will be darker than a normally exposed one. And that
overexposed image? image will have considerably less detail in the shadow areas.
An overexposed image will be whiter than a normally exposed one. Highlights
may "blow out", there may be halo effects, and there will be a generally "washed
out" look to the image.
What causes the silhouette effect in the image on the top the cinematographer decided to expose the background and not Mr. Lavant
of page 8 of this unit? leaving him and the chair underexposed resulting in a middleground silhouette.
How do the filmmakers use exposure to structure the The subjects in the husband's dream are regularly severely overexposed. In the
materials in scene from Hour of the Wolf linked above? most overexposed areas of the frame, like those of the boy's face and shoulder,
we can see no detail. His face and upper torso are simply a swathe of white.
Contrast that with the wife's reaction to this horrifying tale. So underexposed we
can barely make her and her expression out.
What are the effects of the change of aperture during the the image goes from radically overexposed (the subject looks like she's been in a
shot linked above from Hélas pour moi on the image? nuclear explosion at the start of the scene) to radically underexposed (the final
frames seem to take place in darkest night).
Notice as the aperture closes the depth-of-field, the focus increases (watch, for
instance, how the outline of the leaves in the top right of the frame become
sharper and sharper over the course of the shot, as does the detail in the water
behind the actress).
focal length the distance (measured in millimeters) between the optical center of the lens and
the point in the camera where the image is focused
fixed lens (prime lens) a lens with a single focal length that does not zoom, offering high quality images
