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. Aperture controls what?
The brightness of the light that reaches the sensor
Cyan
Aperture - focal length - and distance to the subject
Total number of pixels

2. A tall vertical line on the right hand edge of a histogram indicates what?
A change in illumination
Blown highlights
Flattens out the volume of the subject and minimizes textures
Yellow

3. If an image is too red - what color adjustment should be made in Photoshop to correct it?
Magenta
1) Use a shorter focal length; 2) Move farther away from the subject
Add cyan
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.

4. What does side lighting emphasize?
Add yellow
emphasizes textures
Follow focus
Click with the neutral-point dropper on the selected color

5. A ring of thin - overlapping leaves located inside the lens is called what?
Lower
Variations command
Blown highlights
The diaphragm - the mechanism that controls aperture.

6. In a digital image - the images file sizes corresponds to the total number of what in the image?
Fisheye
Metamerism
emphasizes textures
Total number of pixels

7. Stopping a lens down from f/8 to f/16 represents a X stop difference.
Aperture-priority
Add red
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
Two (f/8 > f/11 > f/16)

8. What are quad- and hex- tone printing?
Inkjet black & white printing where color cartridges are replaced with shades of gray - resulting in smooth tones and slight color cast
Aperture and shutter
The impression human vision gives
Dynamic range

9. As the aperture is stopped down - what happens to sharpness?
A raster image
Blue & Green
Follow focus
More of the background and foreground are sharp.

10. What angle of view does an incident meter read?
Very wide at about 180 degrees
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
Aperture
Front lighting

11. What is a thyristor?
Selecting portions of the image based on color
5000K
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.
1920 pixels by 2400 pixels (4.6 million pixels)

12. 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?
5000K
dynamic range (not to be confused with gamut)
A new layer
Parallax

13. What is a BYTE?
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.
The amount of light reflected back from the subject during exposure.
sensor
Contrast

14. A magic wand tool is used for what?
Black (0)
Maybe as little as 0.5 degrees or 1 degree
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).
Selecting portions of the image based on color

15. An 8x10 at 240 dpi will have a resolution of what?
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
1920 pixels by 2400 pixels (4.6 million pixels)
Lower
Two (f/8 > f/11 > f/16)

16. What are the three main factors that affect depth of field?
Add magenta
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.
emphasizes textures
Aperture - focal length - and distance to the subject

17. Panning does what?
Add blue
Yellow
Keeps a moving subject sharp while blurring the background
Similar to a normal lens at about 30 degrees

18. What kind of lighting pattern is useful to widen a subject?
Black (0)
Broad lighting
stopped down
Metamerism

19. What is the optical resolution on a scanner defined as?
Add magenta
Very wide at about 180 degrees
Aperture-priority
The pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)

20. 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?
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.
Aperture-priority
Creates deep shadows in eye pockets - under nose - and chin.
Blue & Green

21. How would you define exposure in mathematical terms?
Small light source at an angle to the subject
(X times Y = exposure) Intensity (aperture) x Time (shutter)
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
Broad lighting

22. A lens with a very wide angle of view and produces barrel distortion is what kind of lens?
Fisheye
Shutter-priority
1) Use a shorter focal length; 2) Move farther away from the subject
The impression human vision gives

23. What is dodging?
Fisheye
Red - Yellow - Green - Cyan - Blue - Magenta
Infinity
Selectively blocking light during print exposure to lighten the area

24. What is the suggested shutter speed to stop action of a child running parallel to the film plan - about 25 feet from the camera?
Selectively blocking light during print exposure to lighten the area
1/250th
Flattens out the volume of the subject and minimizes textures
Shutter speed & aperture

25. What is gamut?
The entire range of colors that can be seen - reproduced - or captured. Our eyes have a greater gamut than a print or monitor.
Shutter-Priority
9
Inkjet black & white printing where color cartridges are replaced with shades of gray - resulting in smooth tones and slight color cast

26. What determines what will be a 'normal' focal length lens on a particular camera?
Follow focus
Broad lighting
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
Maybe as little as 0.5 degrees or 1 degree

27. 8 bits per pixel gives you how many colors?
One stop less
Blue & Green
256
Inkjet black & white printing where color cartridges are replaced with shades of gray - resulting in smooth tones and slight color cast

28. As the aperture becomes smaller - what happens to the depth of field?
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
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.
It increases
Black. Subtractive primaries are Magenta - Yellow - Cyan

29. The relative aperture is equal to the lens focal length divided by what?
Add green
1) Use a longer lens; 2) Move closer to the subject
hue/saturation adjustment layer
aperture diameter

30. when adjusting an image with levels - if you want to make any color neutral quickly - what would you do?
a sensor (or film's) sensitivity to light
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.
The brightness of the light that reaches the sensor
Click with the neutral-point dropper on the selected color

31. When doing close-up work - what happens to the depth of field when the subject is closer to the lens?
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.
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
8 stops
Selectively increasing print exposure - which will make select parts of the image darker

32. 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?
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)
Use and adjustment layer
Aperture and shutter
four times more

33. What is interpolated resolution?
Two (f/8 > f/11 > f/16)
The amount of information contained in each pixel
The amount of light reflected back from the subject during exposure.
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.

34. If an image is too magenta - what color adjustment should be made in Photoshop to correct it?
lens-to-subject distance
RAID system
a sensor (or film's) sensitivity to light
Add green

35. All objects beyond the closest distance in focus will be sharp when this appears within the DOF scale.
One stop
Infinity
Infrared
sRGB

36. Name 2 ways you can decrease depth of field.
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
Selectively blocking light during print exposure to lighten the area
The difference between light and dark.
1) Use a longer lens; 2) Move closer to the subject

37. What Photoshop tool allows you to select an area of any size or shape by drawing freehand?
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.
Lasso tool
The pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)
Half as much light

38. 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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39. A normal (or standard) focal length lens approximates what?
emphasizes textures
Snoot
Butterfly lighting
The impression human vision gives

40. What image adjustment tool uses a histogram display to alter an image?
The amount of information contained in each pixel
Levels adjustment
White (additive primaries are Red - Green Blue)
1920 pixels by 2400 pixels (4.6 million pixels)

41. What would you use an ICC profile for?
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.
To send accurate color requirements to a printer.
One stop
The amount of information contained in each pixel

42. What do the bars on the left of a histogram represent?
1 1/3 stops
factor of 2 = 1 stop compensation. (Each time a factor doubles - it's one additional stop)
RAID system
Black (0)

43. Blue is opposite what color on the color wheel?
Yellow
Flattens out the volume of the subject and minimizes textures
Aperture-priority
1) Use a shorter focal length; 2) Move farther away from the subject

44. The smallest unit of digital information is called a what?
Total number of pixels
256
Direct sun at 11 -000 Kelvin
Bit

45. A tonal correction cannot be accomplished by using a...
hue/saturation adjustment layer
Add blue
factor of 2 = 1 stop compensation. (Each time a factor doubles - it's one additional stop)
Infrared

46. What angle of view does a reflected light meter read?
The amount of light reflected back from the subject during exposure.
Selectively blocking light during print exposure to lighten the area
Shutter speed & aperture
Similar to a normal lens at about 30 degrees

47. This viewing option gives you the most accurate version of your image in Photoshop.
Shutter speed & aperture
3:1 or 4:1
Infinity
Actual Pixel view

48. What color is opposite Green on the color wheel?
Magenta
four times more
Additive (R - G - B)
Add magenta

49. 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?
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
Blue & Green
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
hue/saturation adjustment layer

50. What is the general rule of thumb for the measurement of a 'normal' lens?
The diagonal measurement of the sensor.
Flat lighting
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
Aperture-Priority