SCI 220 EXAM 1 QUESTIONS AND
ANSWERS
What is bracketing? - Answer- Taking the same photo more than once, using different
settings for different exposures
What is resolution? - Answer- The ability of the camera system to distinguish alternating
line pairs as they get thinner & closer together
What is Acutance? - Answer- The camera's ability to render a sharp edge of the subject
as a sharp edge in the photograph
What does it mean when the picture is sharp and in focus? - Answer- light enters the
camera and converges at a sharp point on the digital sensor
What are the circles of confusion? - Answer- the light is a circle when it hits the digital
sensor, it will remain "confused" and out of focus
Light rays converging before or after the digital sensor will always result in - Answer- a
blurry image
Wide-angle lenses can cause - Answer- a barrel distortion
A telephoto lens can cause - Answer- a pincushion distortion
How do you determine the DOF range with lens? - Answer- •Choose focal distance
•Choose f/stop
•Check DoF scale to determine the
range
Three factors that affect DOF - Answer- •f/stop choice
•Lens choice
•Camera-to-subject distance
When do you want to minimize the DOF - Answer- - daytime surveillance
-latent prints on glass
Photography is the creation of an image using - Answer- light
, In a midrange photo what is the primary subject? - Answer- The evidence, fixed object,
& distance between them
What is composition? - Answer- choosing what will be in focus in the photo
four composition issues - Answer- 1.Determine the primary subject and the composition
that
best captures it
2.Determine proper exposure
3.Select an optimal focusing technique
4.Determine the optimal lighting to use
What are the Cardinal Rules - Answer- 1. Fill the frame
2. Maximize depth of field
3. Keep the film plane parallel
A soft shadow allows - Answer- you to see the detail within the shadow
What is Lens Flare? - Answer- Sunlight directly enters the lens and creates images on
the
lens' optical elements & aperture opening
What does a Macro Lens do - Answer- •Take photographs with the lens closer to the
object than
with other lenses
•Makes small objects much larger
•Decreases the focal distance as compared to other lenses
PIXEL IMPORTANCE - Answer- More pixels on the image
means better resolution when
enlarged
What id depth of field? - Answer- The variable range of what appears in focus
Techniques to better depth of field - Answer- Reciprocal exposure, hyperfocal focus,
zone focus, prefocus the camera
Reciprocal exposure - Answer- Use the one uses the smallest aperture (lens opening)
Hyperfocal focus - Answer- •When the background is infinity
•Uses depth of field scale with the camera's distance scale
Zone focus - Answer- •When infinity is not the background
•Focus by "rule of thirds" if the lens doesn't have a depth of field
scale
ANSWERS
What is bracketing? - Answer- Taking the same photo more than once, using different
settings for different exposures
What is resolution? - Answer- The ability of the camera system to distinguish alternating
line pairs as they get thinner & closer together
What is Acutance? - Answer- The camera's ability to render a sharp edge of the subject
as a sharp edge in the photograph
What does it mean when the picture is sharp and in focus? - Answer- light enters the
camera and converges at a sharp point on the digital sensor
What are the circles of confusion? - Answer- the light is a circle when it hits the digital
sensor, it will remain "confused" and out of focus
Light rays converging before or after the digital sensor will always result in - Answer- a
blurry image
Wide-angle lenses can cause - Answer- a barrel distortion
A telephoto lens can cause - Answer- a pincushion distortion
How do you determine the DOF range with lens? - Answer- •Choose focal distance
•Choose f/stop
•Check DoF scale to determine the
range
Three factors that affect DOF - Answer- •f/stop choice
•Lens choice
•Camera-to-subject distance
When do you want to minimize the DOF - Answer- - daytime surveillance
-latent prints on glass
Photography is the creation of an image using - Answer- light
, In a midrange photo what is the primary subject? - Answer- The evidence, fixed object,
& distance between them
What is composition? - Answer- choosing what will be in focus in the photo
four composition issues - Answer- 1.Determine the primary subject and the composition
that
best captures it
2.Determine proper exposure
3.Select an optimal focusing technique
4.Determine the optimal lighting to use
What are the Cardinal Rules - Answer- 1. Fill the frame
2. Maximize depth of field
3. Keep the film plane parallel
A soft shadow allows - Answer- you to see the detail within the shadow
What is Lens Flare? - Answer- Sunlight directly enters the lens and creates images on
the
lens' optical elements & aperture opening
What does a Macro Lens do - Answer- •Take photographs with the lens closer to the
object than
with other lenses
•Makes small objects much larger
•Decreases the focal distance as compared to other lenses
PIXEL IMPORTANCE - Answer- More pixels on the image
means better resolution when
enlarged
What id depth of field? - Answer- The variable range of what appears in focus
Techniques to better depth of field - Answer- Reciprocal exposure, hyperfocal focus,
zone focus, prefocus the camera
Reciprocal exposure - Answer- Use the one uses the smallest aperture (lens opening)
Hyperfocal focus - Answer- •When the background is infinity
•Uses depth of field scale with the camera's distance scale
Zone focus - Answer- •When infinity is not the background
•Focus by "rule of thirds" if the lens doesn't have a depth of field
scale
