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

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2. What is the term used to describe data contained in a digital image?
Metadata
Contrast
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
1920 pixels by 2400 pixels (4.6 million pixels)

3. How can you change the brightness of the background when using flash?
The sensor's sensitivity to light
It increases
The impression human vision gives
Change the shutter speed. The longer the shutter speed - the lighter the background will be. The faster the shutter speed - the darker the background will be because less existing light is captured.

4. Stopping a lens down from f/8 to f/16 represents a X stop difference.
3200 Kelvin
Two (f/8 > f/11 > f/16)
A mirror and pentaprism
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment

5. What is interpolated resolution?
Direct sun at 11 -000 Kelvin
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
Blue & Green

6. What is an element and where is it found?
High Dynamic Range
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.
Black (0)

7. If an image is too magenta - what color adjustment should be made in Photoshop to correct it?
Add green
1/250th
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
The sensor's sensitivity to light

8. 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.
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.
Short lighting.
Variations command

9. In a digital image - the images file sizes corresponds to the total number of what in the image?
A new layer
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.
Total number of pixels
A high contrast image

10. Bit depth refers to what?
The amount of light reflected back from the subject during exposure.
The amount of information contained in each pixel
5 -000 Kelvin
5000K

11. Sharpness from near to far is controlled by what?
Follow focus
Aperture and shutter
Aperture
(X times Y = exposure) Intensity (aperture) x Time (shutter)

12. What is dodging?
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.
Selectively blocking light during print exposure to lighten the area
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.
Aperture-Priority

13. 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?
Selectively blocking light during print exposure to lighten the area
Shutter-priority
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
flat - low contrast light

14. How much resolution do you need for: Internet? Newspaper? Photographic print? Glossy magazine?
To strike the side of the face away from the camera.
Blown highlights
Parallax
Internet = 72 dpi; Newspaper = 150 dpi; Photographic print = 240-300 dpi; Gloss magazine = 400 dpi

15. What is focal length - technically?
Memory card / flash card / compact flash card
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
Levels adjustment
The sensor that converts the image from analog to digital (1's and 0's) CCD=charge coupled device; CMOS=complementary metal-oxide semiconductor

16. Panning does what?
a sensor (or film's) sensitivity to light
Keeps a moving subject sharp while blurring the background
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.
Infinity

17. What color is opposite Red on the color wheel?
Blue
Cyan
Contrast
White (additive primaries are Red - Green Blue)

18. Digital cameras use what set of primary colors?
Aperture-priority
A new layer
Additive (R - G - B)
Bit

19. 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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20. What light source has the highest color temperature?
More of the background and foreground are sharp.
Soft proofing
The brightness of all the pixels in an image
Direct sun at 11 -000 Kelvin

21. A histogram shows what in an image?
The impression human vision gives
Selectively blocking light during print exposure to lighten the area
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
The brightness of all the pixels in an image

22. What is a thyristor?
lens-to-subject distance
emphasizes textures
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.
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

23. A color image with smooth gradiations requires at least what bit depth?
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
The sensor that converts the image from analog to digital (1's and 0's) CCD=charge coupled device; CMOS=complementary metal-oxide semiconductor
Lasso tool

24. Most lenses are sharpest closed down to how many stops from the widest?
White (255)
Yellow
hue/saturation adjustment layer
1 or 2

25. As the aperture becomes smaller - what happens to the depth of field?
stopped down
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
It increases
Small light source at an angle to the subject

26. Instead of permanently altering your image when adjusting for color and value - what should you do?
A new layer
Use and adjustment layer
Lower
8 bits

27. What Photoshop tool allows you to select an area of any size or shape by drawing freehand?
A new layer
Convex
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).
Lasso tool

28. Perspective is affected by what?
lens-to-subject distance
Actual Pixel view
Add red
International Organization for Standardization

29. To minimize facial wrinkles - this type of lighting is best.
Inkjet black & white printing where color cartridges are replaced with shades of gray - resulting in smooth tones and slight color cast
Front lighting
Additive (R - G - B)
1) Use a shorter focal length; 2) Move farther away from the subject

30. Blue is opposite what color on the color wheel?
White (255)
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.
9
Yellow

31. A normal (or standard) focal length lens approximates what?
Black (0)
hue/saturation adjustment layer
8 stops
The impression human vision gives

32. What determines what will be a 'normal' focal length lens on a particular camera?
bend toward each other and converge at the focal point.
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
four times more
Yellow

33. Why is depth of field greater on a short lens versus a long lens?
A raster image
Creates deep shadows in eye pockets - under nose - and chin.
5 -000 Kelvin
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.

34. This viewing option gives you the most accurate version of your image in Photoshop.
Bit
Soft proofing
Actual Pixel view
A high contrast image

35. What kind of light will be produced when using a large white umbrella close to a subject?
Black. Subtractive primaries are Magenta - Yellow - Cyan
Very wide at about 180 degrees
256
flat - low contrast light

36. What kind of lighting pattern is best for average oval faces and round faces you want to slim?
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment
Metamerism
Levels adjustment
Short lighting.

37. Tungsten is approximately what color temperature?
1920 pixels by 2400 pixels (4.6 million pixels)
Add yellow
3200 Kelvin
Flat lighting

38. This light modifier can be used to highlight a specific area of the subject.
All colors
Snoot
RAID system
8 bits

39. Using this kind of automatic exposure setting on the camera - you set the aperture and the camera sets the shutter speed.
Levels adjustment
Aperture-Priority
Magenta
A RAW file that has been altered

40. What does ISO stand for?
International Organization for Standardization
Variations command
The diagonal measurement of the sensor.
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment

41. The area of acceptable sharpness in an image is called what?
Click with the neutral-point dropper on the selected color
To strike the side of the face away from the camera.
3200 Kelvin
Depth of field

42. Most modern lenses are based on this kind of lens.
Convex
Aperture-Priority
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment
Maybe as little as 0.5 degrees or 1 degree

43. If an image is too blue - what color adjustment should be made in Photoshop to correct it?
Add yellow
Infinity
A RAW file that has been altered
Actual Pixel view

44. This type of file format compresses images by discarding pixels; therefore - each time an images is compressed - it loses pixels.
Zoom lens
JPEG
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)
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).

45. What kind of lighting pattern is useful to widen a subject?
Parallax
Subtractive primaries (plus black)
1) Use a shorter focal length; 2) Move farther away from the subject
Broad lighting

46. What is the usable exposure range - or range of subject brightness called?
Dynamic range
Blue & Green
It increases
1) Use a shorter focal length; 2) Move farther away from the subject

47. 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?
Aperture-priority
flat - low contrast light
Inkjet black & white printing where color cartridges are replaced with shades of gray - resulting in smooth tones and slight color cast
ISO

48. Generally - traditional portraits use what lighting ratio?
3:1 or 4:1
Similar to a normal lens at about 30 degrees
A raster image
a sensor (or film's) sensitivity to light

49. What kind of lighting patter is useful to narrow a face?
The diagonal measurement of the sensor.
Dynamic range
Short lighting
Depth of field

50. An in-camera reflected meter reading a very light toned scene indicates an exposure of 1/250th at f/8. For a correct exposure - what should you do?
ISO
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
A raster image
Metadata