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Test your basic knowledge |
Certified Professional Photographer
Start Test
Study First
Subject
:
certifications
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. An incident-exposure reading for a fair-skinned subject reads f/8 - 1/125th at 100 ISO. The next subject is very dark skinned. What is the proper exposure for the second subject?
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2. Name 3 ways to make a tonal adjustment in Photoshop.
A high contrast image
Infrared
1 1/3 stops
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment
3. If an image is too yellow - what color adjustment should be made in Photoshop to correct it?
Add yellow
Selecting portions of the image based on color
Add blue
Levels adjustment
4. What is the term used to describe a sensor's sensitivity to light?
1) Magnification - or the size of the subject; 2) Angle of view
3200 Kelvin
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
ISO
5. What do the bars on the right of a histogram represent?
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.
1/250th
White (255)
JPEG
6. Using this kind of automatic exposure setting on the camera - you set the aperture and the camera sets the shutter speed.
A mathematical translator assigned to each piece of equipment you use (they map one gamut to another; and the ICC (or International Color Consortium) profile is usually shipped by the equipment manufacturer).
Aperture-Priority
Creates deep shadows in eye pockets - under nose - and chin.
The intensity of the illumination is inversely proportional to the square of the distance from light to subject. At twice the distance from the subject - the light illuminates only 1/4 of the original.
7. What light source has the highest color temperature?
Direct sun at 11 -000 Kelvin
Cyan
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically
256
8. The greatest tonal range from black to white is achievable on what kind of paper?
Glossy paper
factor of 2 = 1 stop compensation. (Each time a factor doubles - it's one additional stop)
It decreases. A 50mm lens at 12 inches and f/4 has a DOF of 1/16th of an inch. At f/11 - it increases to only 1/2 an inch.
Keeps a moving subject sharp while blurring the background
9. What kind of lighting pattern places the key light directly in front of and higher than the face?
Shutter-Priority
The brightness of all the pixels in an image
Butterfly lighting
Infrared
10. How would you define exposure in mathematical terms?
(X times Y = exposure) Intensity (aperture) x Time (shutter)
The diagonal measurement of the sensor.
1) Magnification - or the size of the subject; 2) Angle of view
Flat lighting
11. What kind of lighting pattern is best for average oval faces and round faces you want to slim?
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
Use and adjustment layer
Short lighting.
It emphasizes the edges between tones. A threshold of zero affects all pixels - a higher threshold affects just the edges with high tonal difference and minimizes noise.
12. How is brightness and contrast best controlled in Photoshop?
Aperture - focal length - and distance to the subject
Levels adjustment
A raster image
The diaphragm - the mechanism that controls aperture.
13. What is interpolated resolution?
sRGB
All colors
Add yellow
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
14. To minimize facial wrinkles - this type of lighting is best.
Also called a gobo; it is a small panel usually mounted on a stand that shades some part of the subject or shields the lens from light that could cause flare
Front lighting
5000K
Lower
15. What is the usable exposure range - or range of subject brightness called?
Dynamic range
More of the background and foreground are sharp.
White (255)
Similar to a normal lens at about 30 degrees
16. A lens with a very wide angle of view and produces barrel distortion is what kind of lens?
Fisheye
ISO
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.
Infinity
17. What kind of lighting patter is useful to narrow a face?
Add red
A mirror and pentaprism
Fair Use
Short lighting
18. What is a color profile?
A mathematical translator assigned to each piece of equipment you use (they map one gamut to another; and the ICC (or International Color Consortium) profile is usually shipped by the equipment manufacturer).
The sensor's sensitivity to light
An 8-BIT sequence that represents 256 possibilities - black & white & 254 shades of grey. The size of a file is the number of bytes it contains.
Internet = 72 dpi; Newspaper = 150 dpi; Photographic print = 240-300 dpi; Gloss magazine = 400 dpi
19. Generally - how much exposure compensation (in stops) should be used when using a polarizing filter?
Additive (R - G - B)
Blown highlights
1 1/3 stops
Short lighting.
20. When the additive primaries are mixed together equally - what is created?
The diagonal measurement of the sensor.
Flat lighting
Add magenta
White (additive primaries are Red - Green Blue)
21. What is focal length - technically?
An 8-BIT sequence that represents 256 possibilities - black & white & 254 shades of grey. The size of a file is the number of bytes it contains.
Also called a gobo; it is a small panel usually mounted on a stand that shades some part of the subject or shields the lens from light that could cause flare
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
Front lighting
22. What color is opposite Green on the color wheel?
Magenta
1/250th
8 bits
Aperture
23. Digital cameras use what set of primary colors?
Additive (R - G - B)
White (additive primaries are Red - Green Blue)
Convex
Add cyan
24. Why is depth of field greater on a short lens versus a long lens?
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
Relative aperture. The opening on a long lens must be larger than a corresponding opening on a short lens to produce the same f-stops.
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
Soft proofing
25. Perspective is affected by what?
Black. Subtractive primaries are Magenta - Yellow - Cyan
lens-to-subject distance
Maybe as little as 0.5 degrees or 1 degree
Parallax
26. Bit depth refers to what?
Direct sun at 11 -000 Kelvin
The amount of information contained in each pixel
Infrared
A high contrast image
27. Can you save layers in a JPEG file format?
No
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.
Cyan
28. A histogram with peaks on either end of the histogram and a deep valley in between represents what?
A high contrast image
Luminance is light reflected from the subject (measured by a reflected-light meter) - while Illuminance is light falling on a subject (as measured with an incident light meter)
8 stops
It increases
29. What kind of light will be produced when using a large white umbrella close to a subject?
lens-to-subject distance
Yellow
flat - low contrast light
four times more
30. A filter with a factor of 2 requires how many stops of compensation?
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31. Aperture controls what?
Shutter-Priority
1 or 2
A RAW file that has been altered
The brightness of the light that reaches the sensor
32. What is the best color profile for web images?
Variations command
sRGB
Aperture-priority
It decreases. A 50mm lens at 12 inches and f/4 has a DOF of 1/16th of an inch. At f/11 - it increases to only 1/2 an inch.
33. when adjusting an image with levels - if you want to make any color neutral quickly - what would you do?
hue/saturation adjustment layer
Also called a gobo; it is a small panel usually mounted on a stand that shades some part of the subject or shields the lens from light that could cause flare
Click with the neutral-point dropper on the selected color
One stop less
34. Copyright law has certain built-in exceptions that allow for special situations in using copyrighted material. They are called what?
Shutter-Priority
Short lighting
Fair Use
A mathematical translator assigned to each piece of equipment you use (they map one gamut to another; and the ICC (or International Color Consortium) profile is usually shipped by the equipment manufacturer).
35. Focal length controls what?
Creates deep shadows in eye pockets - under nose - and chin.
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
1) Magnification - or the size of the subject; 2) Angle of view
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.
36. This type of backup system is fault-tolerant because it creates redundant data.
Black. Subtractive primaries are Magenta - Yellow - Cyan
It emphasizes the edges between tones. A threshold of zero affects all pixels - a higher threshold affects just the edges with high tonal difference and minimizes noise.
5 -000 Kelvin
RAID system
37. To emphasize texture in a portrait - what kind of light source is recommended?
1920 pixels by 2400 pixels (4.6 million pixels)
Small light source at an angle to the subject
The smallest unit of information consisting of either a 1 or a zero. It can only represent two possibilities - either yes or no - black or white.
Aperture-Priority
38. What do TTL systems react to?
Fair Use
A change in illumination
The amount of light reflected back from the subject during exposure.
Reciprocal relationship
39. If an image is too red - what color adjustment should be made in Photoshop to correct it?
Internet = 72 dpi; Newspaper = 150 dpi; Photographic print = 240-300 dpi; Gloss magazine = 400 dpi
Levels adjustment
The amount of light reflected back from the subject during exposure.
Add cyan
40. This viewing option gives you the most accurate version of your image in Photoshop.
Half as much light
Actual Pixel view
Selecting portions of the image based on color
High Dynamic Range
41. A histogram shows what in an image?
Inkjet black & white printing where color cartridges are replaced with shades of gray - resulting in smooth tones and slight color cast
Zoom lens
Front lighting
The brightness of all the pixels in an image
42. Daylight is approximately what color temperature?
Convex
Flattens out the volume of the subject and minimizes textures
5 -000 Kelvin
Two (f/8 > f/11 > f/16)
43. An 8x10 at 240 dpi will have a resolution of what?
1920 pixels by 2400 pixels (4.6 million pixels)
Click with the neutral-point dropper on the selected color
Add magenta
The sensor's sensitivity to light
44. In a 2:1 ratio - the shadow side of the subject would meter at X stop(s) less than the highlight side.
Black (0)
Metamerism
One stop less
stopped down
45. What does the term "stop" mean?
Soft proofing
No
White (255)
A change in illumination
46. Convex lenses cause light rays to do what?
bend toward each other and converge at the focal point.
The amount of information contained in each pixel
Add cyan
The impression human vision gives
47. An image made of pixels is sometimes called what?
The intensity of the illumination is inversely proportional to the square of the distance from light to subject. At twice the distance from the subject - the light illuminates only 1/4 of the original.
A RAW file that has been altered
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.
A raster image
48. Doubling the aperture setting creates how many stops difference in the amount of light reaching the sensor?
Small light source at an angle to the subject
One stop
Bit
Internet = 72 dpi; Newspaper = 150 dpi; Photographic print = 240-300 dpi; Gloss magazine = 400 dpi
49. What are IPTC fields used for?
ISO
aperture diameter
Glossy paper
Metadata fields that hold info on photographer - subject - and use.
50. When doing close-up work - what happens to the depth of field when the subject is closer to the lens?
White (additive primaries are Red - Green Blue)
Small light source at an angle to the subject
A mirror and pentaprism
It decreases. A 50mm lens at 12 inches and f/4 has a DOF of 1/16th of an inch. At f/11 - it increases to only 1/2 an inch.