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. What is focal length - technically?
Lasso tool
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
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.
The sensor's sensitivity to light

2. What is a color profile?
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).
1920 pixels by 2400 pixels (4.6 million pixels)
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.
The difference between light and dark.

3. Color systems divide all colors into which three measurements?
High Dynamic Range
Hue - Luminance - Saturation
Reflected light meter
JPEG

4. Generally - how much exposure compensation (in stops) should be used when using a polarizing filter?
1 1/3 stops
Memory card / flash card / compact flash card
RAID system
A change in illumination

5. What is the best color profile for web images?
Magenta
sRGB
Aperture-priority
Add cyan

6. To minimize facial wrinkles - this type of lighting is best.
a sensor (or film's) sensitivity to light
Front lighting
Fair Use
Add magenta

7. 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?
aperture diameter
The impression human vision gives
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
Shutter speed & aperture

8. What image adjustment tool uses a histogram display to alter an image?
Use and adjustment layer
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
Levels adjustment
A RAW file that has been altered

9. If an image is too blue - what color adjustment should be made in Photoshop to correct it?
The diagonal measurement of the sensor.
bend toward each other and converge at the focal point.
Inkjet black & white printing where color cartridges are replaced with shades of gray - resulting in smooth tones and slight color cast
Add yellow

10. How would you define exposure in mathematical terms?
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
(X times Y = exposure) Intensity (aperture) x Time (shutter)
Cyan
Fair Use

11. 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?
Blue
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
aperture diameter

12. As the aperture becomes smaller - what happens to the depth of field?
Infinity
It increases
Aperture-Priority
sRGB

13. What is a derivative file?
A RAW file that has been altered
Metamerism
Yellow
(X times Y = exposure) Intensity (aperture) x Time (shutter)

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

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15. What color is between Magenta and Cyan on the color wheel?
Reflected light meter
1) Magnification - or the size of the subject; 2) Angle of view
Blue
Hue - Luminance - Saturation

16. This light modifier can be used to highlight a specific area of the subject.
3200 Kelvin
Selecting portions of the image based on color
Snoot
1920 pixels by 2400 pixels (4.6 million pixels)

17. Convex lenses cause light rays to do what?
bend toward each other and converge at the focal point.
1) Use a longer lens; 2) Move closer to the subject
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
A raster image

18. What angle of view does an incident meter read?
a sensor (or film's) sensitivity to light
Very wide at about 180 degrees
Black. Subtractive primaries are Magenta - Yellow - Cyan
Reciprocal relationship

19. What angle of view does a spot meter read?
Levels adjustment
sensor
Similar to a normal lens at about 30 degrees
Maybe as little as 0.5 degrees or 1 degree

20. 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?
Variations command
The difference between light and dark.
Shutter-priority
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically

21. The term to describe the combination of aperture and shutter speed that can be changed by moving them in opposite directions.
Parallax
Reciprocal relationship
Black (0)
(X times Y = exposure) Intensity (aperture) x Time (shutter)

22. The rule of thirds necessitates that the composition be divided into a grid of now many equal rectangles or squares?
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.
Add blue
9
A RAW file that has been altered

23. If an image is too red - what color adjustment should be made in Photoshop to correct it?
Short lighting
Add cyan
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
Shutter-Priority

24. Whenever another image is copied or moved into a file - Photoshop automatically creates what?
Soft proofing
The amount of information contained in each pixel
Aperture - focal length - and distance to the subject
A new layer

25. Using this kind of automatic exposure setting on the camera - you set the shutter speed and the camera sets the aperture.
sRGB
5000K
8 stops
Shutter-Priority

26. What color is opposite Green on the color wheel?
The number of pixels per unit of length in a image
Incident light meter
A mirror and pentaprism
Magenta

27. Name 3 ways to make a tonal adjustment in Photoshop.
A new layer
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment
A change in illumination
ISO

28. Most inkjet printers intended for photographic printing include light and dark inks of all of the colors except for one. Which color ink is usually available only in one density?
hue/saturation adjustment layer
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).
Flattens out the volume of the subject and minimizes textures
Yellow

29. A technique used to maintain sharp focus on a subject that is moving toward you is called what?
Follow focus
The difference between light and dark.
5 -000 Kelvin
Direct sun at 11 -000 Kelvin

30. In short lighting - where is the main light placed?
Flattens out the volume of the subject and minimizes textures
To strike the side of the face away from the camera.
Aperture - focal length - and distance to the subject
Metadata fields that hold info on photographer - subject - and use.

31. When mixed in varying proportion - the subtractive primary colors produce what?
Depth of field
lengthen (or slow) the shutter speed
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.
All colors

32. Why is depth of field greater on a short lens versus a long lens?
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.
In the middle
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).
3:1 or 4:1

33. A lens set at f/4 admits how much more/less light than one set at f/2.8?
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.
The brightness of the light that reaches the sensor
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
Half as much light

34. This technique allows you to keep a subject that is moving toward you well focused.
Follow focus
Magenta
Aperture-priority
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.

35. when adjusting an image with levels - if you want to make any color neutral quickly - what would you do?
Keeps a moving subject sharp while blurring the background
flat - low contrast light
White (additive primaries are Red - Green Blue)
Click with the neutral-point dropper on the selected color

36. Can you save layers in a JPEG file format?
The difference between light and dark.
All colors
bend toward each other and converge at the focal point.
No

37. The relative aperture is equal to the lens focal length divided by what?
Fisheye
aperture diameter
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.
1/250th

38. Aperture controls what?
Shutter-priority
The brightness of all the pixels in an image
The brightness of the light that reaches the sensor
Cyan

39. Stopping a lens down from f/8 to f/16 represents a X stop difference.
Zoom lens
Two (f/8 > f/11 > f/16)
A raster image
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.

40. What is the name of the issue that prevents you from seeing exactly what the lens sees when using a rangefinder camera?
Parallax
The brightness of all the pixels in an image
Actual Pixel view
8 stops

41. What is the suggested shutter speed to stop action of a child running parallel to the film plan - about 25 feet from the camera?
Aperture
Reciprocal relationship
1/250th
Blown highlights

42. What does a neutral density filter do?
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
Variations command
Maybe as little as 0.5 degrees or 1 degree
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.

43. What does the term "stop" mean?
A change in illumination
Similar to a normal lens at about 30 degrees
Metadata fields that hold info on photographer - subject - and use.
Dynamic range

44. What kind of lighting pattern places the key light directly in front of and higher than the face?
Butterfly lighting
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.
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.
Fair Use

45. What do the bars on the left of a histogram represent?
5 -000 Kelvin
1920 pixels by 2400 pixels (4.6 million pixels)
Black (0)
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.

46. A lens with a very wide angle of view and produces barrel distortion is what kind of lens?
Fisheye
Red - Yellow - Green - Cyan - Blue - Magenta
Reflected light meter
Short lighting.

47. 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.
Aperture - focal length - and distance to the subject
bend toward each other and converge at the focal point.
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

48. Maximum depth of field at a given aperture is achieved by focusing at what?
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically
bend toward each other and converge at the focal point.
The diaphragm - the mechanism that controls aperture.
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.

49. 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.
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
Add yellow
Add red

50. What determines what will be a 'normal' focal length lens on a particular camera?
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.
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
3:1 or 4:1
Creates deep shadows in eye pockets - under nose - and chin.