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. How much resolution do you need for: Internet? Newspaper? Photographic print? Glossy magazine?
Additive (R - G - B)
Follow focus
Internet = 72 dpi; Newspaper = 150 dpi; Photographic print = 240-300 dpi; Gloss magazine = 400 dpi
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

2. A filter with a factor of 2 requires how many stops of compensation?

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3. What are luminance and illuminance?
256
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)
All colors
Small light source at an angle to the subject

4. What does the term "stop" mean?
sensor
Flattens out the volume of the subject and minimizes textures
dynamic range (not to be confused with gamut)
A change in illumination

5. If you're working with an automatic camera and you set the aperture and the camera sets the shutter speed - what mode are you working in?
Convex
The diagonal measurement of the sensor.
Glossy paper
Aperture-priority

6. What kind of light will be produced when using a large white umbrella close to a subject?
To send accurate color requirements to a printer.
1 1/3 stops
More of the background and foreground are sharp.
flat - low contrast light

7. What is the suggested shutter speed to stop action of a child running parallel to the film plan - about 25 feet from the camera?
No change. The EXPOSURE doesn't change or it would also change the background as well. Move the lights to adjust.
1/250th
Shutter-priority
Half as much light

8. What is the effect of front lighting?
Memory card / flash card / compact flash card
Flattens out the volume of the subject and minimizes textures
The impression human vision gives
Additive (R - G - B)

9. Doubling the aperture setting creates how many stops difference in the amount of light reaching the sensor?
One stop
The difference between light and dark.
The brightness of the light that reaches the sensor
Levels adjustment

10. Bit depth refers to what?
Metamerism
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.
sensor
The amount of information contained in each pixel

11. According to the Inverse Square Law - at a distance of 10 feet from a flash - the area illuminated receives how much more/less light than the area illuminated at 20 feet from the flash?
Similar to a normal lens at about 30 degrees
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.
four times more
White (additive primaries are Red - Green Blue)

12. A lens with a very wide angle of view and produces barrel distortion is what kind of lens?
Fisheye
Half as much light
It increases
Add blue

13. As the aperture is stopped down - what happens to sharpness?
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment
emphasizes textures
Direct sun at 11 -000 Kelvin
More of the background and foreground are sharp.

14. What do the bars on the right of a histogram represent?
Metadata fields that hold info on photographer - subject - and use.
5000K
Contrast
White (255)

15. What determines what will be a 'normal' focal length lens on a particular camera?
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
Very wide at about 180 degrees
Two (f/8 > f/11 > f/16)

16. Color systems divide all colors into which three measurements?
It increases
One stop
Aperture
Hue - Luminance - Saturation

17. 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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18. A lens set at f/4 admits how much more/less light than one set at f/2.8?
factor of 2 = 1 stop compensation. (Each time a factor doubles - it's one additional stop)
Half as much light
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.
lens-to-subject distance

19. In a curves adjustment layer - what does the shape of the curve indicate?
Depth of field
Contrast
Shutter-priority
The brightness of the light that reaches the sensor

20. What angle of view does a spot meter read?
A change in illumination
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.
5 -000 Kelvin
Maybe as little as 0.5 degrees or 1 degree

21. How is brightness and contrast best controlled in Photoshop?
The brightness of the light that reaches the sensor
Levels adjustment
8 stops
1 or 2

22. In short lighting - where is the main light placed?
four times more
Follow focus
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
To strike the side of the face away from the camera.

23. A histogram with peaks on either end of the histogram and a deep valley in between represents what?
Total number of pixels
A high contrast image
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.
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

24. What kind of film can help reduce haze in a landscape?
The number of pixels per unit of length in a image
3:1 or 4:1
Infrared
Follow focus

25. Aperture controls what?
lengthen (or slow) the shutter speed
Convex
Lower
The brightness of the light that reaches the sensor

26. The relative aperture is equal to the lens focal length divided by what?
RAID system
aperture diameter
Very wide at about 180 degrees
The brightness of the light that reaches the sensor

27. What is the term used to describe data contained in a digital image?
No change. The EXPOSURE doesn't change or it would also change the background as well. Move the lights to adjust.
dynamic range (not to be confused with gamut)
Levels adjustment
Metadata

28. An image made of pixels is sometimes called what?
A raster image
stopped down
sensor
Hue - Luminance - Saturation

29. Printers use what set of colors?
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
Subtractive primaries (plus black)
Fisheye
The impression human vision gives

30. Generally - traditional portraits use what lighting ratio?
3:1 or 4:1
Front lighting
Actual Pixel view
Metamerism

31. When buying a lens hood - you should get it in what size relative to the lens?

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

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33. What are IPTC fields used for?
Metadata fields that hold info on photographer - subject - and use.
256
Total number of pixels
Lasso tool

34. What is interpolated resolution?
International Organization for Standardization
Internet = 72 dpi; Newspaper = 150 dpi; Photographic print = 240-300 dpi; Gloss magazine = 400 dpi
Aperture
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.

35. What is a flag?
Flat lighting
Two (f/8 > f/11 > f/16)
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 diaphragm - the mechanism that controls aperture.

36. To produce optimal sharpness - detail - and resolution - is a higher or lower ISO setting better?
1/250th
Lower
Convex
Actual Pixel view

37. According to the rule of thirds - where should the important parts of an image fall?
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically
The sensor's sensitivity to light
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
a sensor (or film's) sensitivity to light

38. What does ISO stand for?
Two (f/8 > f/11 > f/16)
8 stops
In the middle
International Organization for Standardization

39. 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?
Aperture-priority
All colors
Shutter-priority
No

40. A tall vertical line on the right hand edge of a histogram indicates what?
Blown highlights
In the middle
With the Main at 45 degrees to one side and 45 degrees above subject - it is a classic angle for portraits. It seems natural and flattering and models the face into 3D form.
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.

41. A normal (or standard) focal length lens approximates what?
The impression human vision gives
Selectively blocking light during print exposure to lighten the area
International Organization for Standardization
Fisheye

42. Printers use how many bits per channel of information when printing?
stopped down
A light-sensitive cell or sensor inside a flash unit that measures the amount of light reflecting off a subject when a flash is used.
Similar to a normal lens at about 30 degrees
8 bits

43. If an image is too blue - what color adjustment should be made in Photoshop to correct it?
Add yellow
The diaphragm - the mechanism that controls aperture.
The number of pixels per unit of length in a image
Flat lighting

44. Panning does what?
factor of 2 = 1 stop compensation. (Each time a factor doubles - it's one additional stop)
bend toward each other and converge at the focal point.
Keeps a moving subject sharp while blurring the background
The number of pixels per unit of length in a image

45. What is the best color profile for web images?
Parallax
sRGB
Blue & Green
8 stops

46. Maximum depth of field at a given aperture is achieved by focusing at what?
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.
High Dynamic Range
Hyperfocal distance. A lens focused at the hyperfocal distance has depth of field extending from approximately half the hyperfocal distance to infinity - whereas a lens focused at infinity has a depth of field only at infinity.
Very wide at about 180 degrees

47. What is a thyristor?
A light-sensitive cell or sensor inside a flash unit that measures the amount of light reflecting off a subject when a flash is used.
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.
Lasso tool
Infinity

48. What is the term used to describe a sensor's sensitivity to light?
JPEG
Shutter-priority
A mirror and pentaprism
ISO

49. What angle of view does an incident meter read?
White (additive primaries are Red - Green Blue)
JPEG
Very wide at about 180 degrees
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.

50. What two controls adjust the amount of light that reaches the sensor?
Aperture and shutter
hue/saturation adjustment layer
Follow focus
Aperture-Priority