Test your basic knowledge |

Certified Professional Photographer

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 image made of pixels is sometimes called what?
Convex
A raster image
A change in illumination
1 1/3 stops

2. What kind of lighting patter is useful to narrow a face?
Short lighting
Blue
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.
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.

3. 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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4. Resolution refers to what?
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment
The number of pixels per unit of length in a image
Glossy paper
1) Use a shorter focal length; 2) Move farther away from the subject

5. If your print will be viewed mostly under window light - what is the suggested Kelvin temperature of the lights you should use to evaluate your print?
Memory card / flash card / compact flash card
5000K
The amount of information contained in each pixel
Additive (R - G - B)

6. How would you define exposure in mathematical terms?
(X times Y = exposure) Intensity (aperture) x Time (shutter)
Reflected light meter
bend toward each other and converge at the focal point.
To create a 1-stop difference - multiply the original distance by 1.4. Example - if you were originally 5 feet away - a 1-stop difference would have you step back to 7 feet.

7. What kind of light will be produced when using a large white umbrella close to a subject?
In the middle
flat - low contrast light
Creates deep shadows in eye pockets - under nose - and chin.
Similar to a normal lens at about 30 degrees

8. The amount of motion blur in an image will increase if you do what?
A RAW file that has been altered
lengthen (or slow) the shutter speed
1 or 2
Reciprocal relationship

9. As the aperture becomes smaller - what happens to the depth of field?
White (additive primaries are Red - Green Blue)
It increases
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
Add green

10. What is dodging?
One stop
1/250th
Selectively blocking light during print exposure to lighten the area
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.

11. The area of acceptable sharpness in an image is called what?
The brightness of the light that reaches the sensor
Internet = 72 dpi; Newspaper = 150 dpi; Photographic print = 240-300 dpi; Gloss magazine = 400 dpi
Use and adjustment layer
Depth of field

12. An 8x10 at 240 dpi will have a resolution of what?
Follow focus
1920 pixels by 2400 pixels (4.6 million pixels)
The number of pixels per unit of length in a image
Reflected light meter

13. To emphasize texture in a portrait - what kind of light source is recommended?
Total number of pixels
Small light source at an angle to the subject
Front lighting
The sensor's sensitivity to light

14. Printers use how many bits per channel of information when printing?
One stop less
Short lighting.
8 bits
Add yellow

15. The useable exposure range of a sensor - or the range of subject brightness is called what?
Convex
Levels adjustment
dynamic range (not to be confused with gamut)
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)

16. Convex lenses cause light rays to do what?
Levels adjustment
bend toward each other and converge at the focal point.
To strike the side of the face away from the camera.
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.

17. What two controls adjust the amount of light that reaches the sensor?
Aperture and shutter
Infinity
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.

18. A lens set at f/4 admits how much more/less light than one set at f/2.8?
Very wide at about 180 degrees
hue/saturation adjustment layer
Half as much light
Black. Subtractive primaries are Magenta - Yellow - Cyan

19. What is the usable exposure range - or range of subject brightness called?
Dynamic range
Fair Use
Shutter-Priority
The amount of light reflected back from the subject during exposure.

20. A tall vertical line on the right hand edge of a histogram indicates what?
Blown highlights
More of the background and foreground are sharp.
8 bits
Convex

21. What kind of meter is built in to most cameras?
hue/saturation adjustment layer
Aperture
The difference between light and dark.
Reflected light meter

22. What is the term used to describe human's change in perception of a color under different light sources?
Metamerism
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.
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.
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.

23. Bit depth refers to what?
The amount of light reflected back from the subject during exposure.
The amount of information contained in each pixel
Yellow
1/250th

24. This kind of meter is preferred by photographers working in a studio situation where lighting conditions can be altered.
Metadata
Incident light meter
Fisheye
White (255)

25. If an image is too blue - what color adjustment should be made in Photoshop to correct it?
Add yellow
Lasso tool
3:1 or 4:1
Total number of pixels

26. When the size of the aperture is decreased - it is said to be what?
stopped down
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
White (255)
Inkjet black & white printing where color cartridges are replaced with shades of gray - resulting in smooth tones and slight color cast

27. When doing close-up work - what happens to the depth of field when the subject is closer to the lens?
All colors
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.
8 stops
Selectively increasing print exposure - which will make select parts of the image darker

28. What is a color profile?
Similar to a normal lens at about 30 degrees
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).
More of the background and foreground are sharp.
Shutter-Priority

29. What is burning?
Metamerism
Front lighting
Total number of pixels
Selectively increasing print exposure - which will make select parts of the image darker

30. An in-camera reflected meter reading a very dark scene indicates an exposure of 1/250th at f/8. For a correct exposure - what should you do?
1) Use a longer lens; 2) Move closer to the subject
Reciprocal relationship
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
Add blue

31. When mixed in varying proportion - the subtractive primary colors produce what?
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
Internet = 72 dpi; Newspaper = 150 dpi; Photographic print = 240-300 dpi; Gloss magazine = 400 dpi
All colors
Two (f/8 > f/11 > f/16)

32. If you're working with an automatic camera and you set the shutter speed and the camera sets the aperture - what mode are you working in?
Shutter-priority
Lasso tool
It increases
Click with the neutral-point dropper on the selected color

33. Panning does what?
Keeps a moving subject sharp while blurring the background
Add blue
Fisheye
Selecting portions of the image based on color

34. What is a derivative file?
More of the background and foreground are sharp.
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.
3200 Kelvin
A RAW file that has been altered

35. In a curves adjustment layer - what does the shape of the curve indicate?
8 bits
Selectively blocking light during print exposure to lighten the area
Contrast
emphasizes textures

36. A histogram with peaks on either end of the histogram and a deep valley in between represents what?
Broad lighting
A high contrast image
Because you can move in close to the subject
Short lighting

37. What color is between Magenta and Cyan on the color wheel?
9
Add green
Blue
four times more

38. The term "ISO speed" is used to describe what?

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39. What determines what will be a 'normal' focal length lens on a particular camera?
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
sRGB
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
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment

40. This viewing option gives you the most accurate version of your image in Photoshop.
Infinity
1 1/3 stops
Actual Pixel view
dynamic range (not to be confused with gamut)

41. The smallest unit of digital information is called a 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.
Bit
In the middle
The amount of information contained in each pixel

42. If you must move to reduce the amount of flash reaching your subject - how far do you move?
To create a 1-stop difference - multiply the original distance by 1.4. Example - if you were originally 5 feet away - a 1-stop difference would have you step back to 7 feet.
A raster image
The amount of light reflected back from the subject during exposure.
It increases

43. Daylight is approximately what color temperature?
The diagonal measurement of the sensor.
Use and adjustment layer
Zoom lens
5 -000 Kelvin

44. What is the optical resolution on a scanner defined as?
256
Small light source at an angle to the subject
The brightness of the light that reaches the sensor
The pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)

45. Name 3 ways to make a tonal adjustment in Photoshop.
In the middle
A RAW file that has been altered
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment
Flattens out the volume of the subject and minimizes textures

46. A magic wand tool is used for what?
To send accurate color requirements to a printer.
Front lighting
Metadata fields that hold info on photographer - subject - and use.
Selecting portions of the image based on color

47. How is brightness and contrast best controlled in Photoshop?
Levels adjustment
lengthen (or slow) the shutter speed
9
Blown highlights

48. What is the name of the issue that prevents you from seeing exactly what the lens sees when using a rangefinder camera?
One stop less
Lower
Broad lighting
Parallax

49. If an image is too magenta - what color adjustment should be made in Photoshop to correct it?
Add green
Selecting portions of the image based on color
A RAW file that has been altered
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.

50. What is a Bit?
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.
Direct sun at 11 -000 Kelvin
It should match the focal length. Too wide and it's inefficient; too narrow and it will vignette; most likely to occur with wide angle of 28mm and below.
Red - Yellow - Green - Cyan - Blue - Magenta