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. Most modern lenses are based on this kind of lens.
Hue - Luminance - Saturation
Convex
sensor
Small light source at an angle to the subject

2. A lens with a very wide angle of view and produces barrel distortion is what kind of lens?
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
256
Infinity
Fisheye

3. To emphasize texture in a portrait - what kind of light source is recommended?
Blue
Add yellow
Small light source at an angle to the subject
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).

4. What is dodging?
5 -000 Kelvin
Additive (R - G - B)
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.
Selectively blocking light during print exposure to lighten the area

5. The amount of motion blur in an image will increase if you do what?
Shutter speed & aperture
lengthen (or slow) the shutter speed
sensor
stopped down

6. 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.
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)
The pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)
hue/saturation adjustment layer

7. This viewing option gives you the most accurate version of your image in Photoshop.
Actual Pixel view
The amount of information contained in each pixel
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.
A mirror and pentaprism

8. If an image is too cyan - what color adjustment should be made in Photoshop to correct it?
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
Add red
Metamerism
Selectively blocking light during print exposure to lighten the area

9. A normal (or standard) focal length lens approximates what?
Add magenta
The impression human vision gives
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically
Reciprocal relationship

10. All objects beyond the closest distance in focus will be sharp when this appears within the DOF scale.
Infinity
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.
A change in illumination
3:1 or 4:1

11. What kind of lighting pattern places the key light directly in front of and higher than the face?
3200 Kelvin
Butterfly lighting
The brightness of the light that reaches the sensor
Maybe as little as 0.5 degrees or 1 degree

12. The quantity of light that reaches your sensor is controlled by what?
Glossy paper
In the middle
Click with the neutral-point dropper on the selected color
Shutter speed & aperture

13. Bit depth refers to what?
Because you can move in close to the subject
Contrast
The amount of information contained in each pixel
flat - low contrast light

14. What is the usable exposure range - or range of subject brightness called?
bend toward each other and converge at the focal point.
Dynamic range
Red - Yellow - Green - Cyan - Blue - Magenta
The brightness of all the pixels in an image

15. What angle should a polarizing filter be to the sun for best results?
flat - low contrast light
A mirror and pentaprism
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.
Magenta

16. 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?
lengthen (or slow) the shutter speed
Lower
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
Shutter-Priority

17. The term to describe the combination of aperture and shutter speed that can be changed by moving them in opposite directions.
One stop
The diagonal measurement of the sensor.
aperture diameter
Reciprocal relationship

18. How is brightness and contrast best controlled in Photoshop?
International Organization for Standardization
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.
Levels adjustment
A raster image

19. What color is opposite Green on the color wheel?
Bit
JPEG
All colors
Magenta

20. What is the CCD or CMOS sensor?

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21. Using this kind of automatic exposure setting on the camera - you set the aperture and the camera sets the shutter speed.
Add cyan
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)
Blown highlights
Aperture-Priority

22. What is a color profile?
sRGB
Add yellow
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).
3200 Kelvin

23. What are the three main factors that affect depth of field?
Snoot
One stop
Aperture - focal length - and distance to the subject
The amount of light reflected back from the subject during exposure.

24. What is the inverse square law?
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.
Fisheye
Half as much light
A change in illumination

25. What angle of view does a reflected light meter read?
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.
factor of 2 = 1 stop compensation. (Each time a factor doubles - it's one additional stop)
sensor
Similar to a normal lens at about 30 degrees

26. What image adjustment tool uses a histogram display to alter an image?
Small light source at an angle to the subject
Fair Use
a sensor (or film's) sensitivity to light
Levels adjustment

27. An image made of pixels is sometimes called what?
To strike the side of the face away from the camera.
A new layer
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

28. When the size of the aperture is decreased - it is said to be what?
Shutter-priority
Black (0)
stopped down
Memory card / flash card / compact flash card

29. Doubling the aperture setting creates how many stops difference in the amount of light reaching the sensor?
Aperture
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.
One stop
dynamic range (not to be confused with gamut)

30. In a curves adjustment layer - what does the shape of the curve indicate?
Contrast
Similar to a normal lens at about 30 degrees
Depth of field
Shutter speed & aperture

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

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32. 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?
One stop
hue/saturation adjustment layer
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
Selectively blocking light during print exposure to lighten the area

33. Can you save layers in a JPEG file format?
Black (0)
Flattens out the volume of the subject and minimizes textures
Butterfly lighting
No

34. If an image is too red - what color adjustment should be made in Photoshop to correct it?
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.
A RAW file that has been altered
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
Add cyan

35. What do the bars on the left of a histogram represent?
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
Black (0)
Click with the neutral-point dropper on the selected color

36. when adjusting an image with levels - if you want to make any color neutral quickly - what would you do?
Click with the neutral-point dropper on the selected color
emphasizes textures
A new layer
Shutter speed & aperture

37. What are the effects of top lighting?
Aperture and shutter
Creates deep shadows in eye pockets - under nose - and chin.
Flattens out the volume of the subject and minimizes textures
More of the background and foreground are sharp.

38. In a digital image - the images file sizes corresponds to the total number of what in the image?
Flat lighting
1/250th
Creates deep shadows in eye pockets - under nose - and chin.
Total number of pixels

39. What angle of view does a spot meter read?
Glossy paper
Additive (R - G - B)
Maybe as little as 0.5 degrees or 1 degree
(X times Y = exposure) Intensity (aperture) x Time (shutter)

40. To minimize facial wrinkles - this type of lighting is best.
emphasizes textures
Front lighting
Blue
Dynamic range

41. As the aperture is stopped down - what happens to sharpness?
Aperture-priority
Click with the neutral-point dropper on the selected color
More of the background and foreground are sharp.
JPEG

42. What is the best color profile for web images?
A mirror and pentaprism
four times more
Fisheye
sRGB

43. Most lenses are sharpest closed down to how many stops from the widest?
Because you can move in close to the subject
1 or 2
1/250th
sensor

44. Cyan is composed of equal parts of what two colors?
aperture diameter
Blue & Green
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.
stopped down

45. How does 'unsharp mask' work?
Additive (R - G - B)
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.
Reflected light meter
Keeps a moving subject sharp while blurring the background

46. What is interpolated resolution?
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
(X times Y = exposure) Intensity (aperture) x Time (shutter)
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment
1 1/3 stops

47. What would you use an ICC profile for?
To send accurate color requirements to a printer.
Maybe as little as 0.5 degrees or 1 degree
Selectively increasing print exposure - which will make select parts of the image darker
Selectively blocking light during print exposure to lighten the area

48. If an image is too green - what color adjustment should be made in Photoshop to correct it?
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
Parallax
Add magenta
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.

49. Name 2 ways you can decrease depth of field.
1) Use a longer lens; 2) Move closer to the subject
Yellow
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically
Metadata fields that hold info on photographer - subject - and use.

50. A lens set at f/4 admits how much more/less light than one set at f/2.8?
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.
Levels adjustment
Subtractive primaries (plus black)
Half as much light