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 light source has the highest color temperature?
White (additive primaries are Red - Green Blue)
Cyan
The diaphragm - the mechanism that controls aperture.
Direct sun at 11 -000 Kelvin

2. In a curves adjustment layer - what does the shape of the curve indicate?
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
International Organization for Standardization
Contrast
Red - Yellow - Green - Cyan - Blue - Magenta

3. This kind of meter is preferred by photographers working in a studio situation where lighting conditions can be altered.
One stop
Half as much light
Incident light meter
Short lighting.

4. The relative aperture is equal to the lens focal length divided by what?
5 -000 Kelvin
aperture diameter
Total number of pixels
Magenta

5. The image transmitted by the lens is recorded by the what?
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.
Shutter-Priority
Infinity
sensor

6. What is the inverse square law?
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 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.
The diagonal measurement of the sensor.
Add magenta

7. What is the name of the issue that prevents you from seeing exactly what the lens sees when using a rangefinder camera?
Fisheye
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment
Parallax
Use and adjustment layer

8. A 1:1 lighting ratio produces what lighting result?
Internet = 72 dpi; Newspaper = 150 dpi; Photographic print = 240-300 dpi; Gloss magazine = 400 dpi
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
Flat lighting
Metadata

9. Going clockwise around the color wheel - starting with RED - what is the progression of colors?
A change in illumination
Red - Yellow - Green - Cyan - Blue - Magenta
Very wide at about 180 degrees
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.

10. Copyright law has certain built-in exceptions that allow for special situations in using copyrighted material. They are called what?
A raster image
Butterfly 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)
Fair Use

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

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12. A histogram with peaks on either end of the histogram and a deep valley in between represents what?
It increases
A high contrast image
Shutter-priority
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.

13. Using this kind of automatic exposure setting on the camera - you set the aperture and the camera sets the shutter speed.
Black (0)
Aperture-Priority
Maybe as little as 0.5 degrees or 1 degree
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.

14. What does the term "stop" mean?
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
A change in illumination
Reciprocal relationship
The sensor's sensitivity to light

15. What does a neutral density filter do?
hue/saturation adjustment layer
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.
5000K
White (255)

16. What two controls adjust the amount of light that reaches the sensor?
A mirror and pentaprism
Half as much light
256
Aperture and shutter

17. What kind of film can help reduce haze in a landscape?
Levels adjustment
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
Infrared
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.

18. A color image with smooth gradiations requires at least what bit depth?
Selecting portions of the image based on color
Because you can move in close to the subject
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
Small light source at an angle to the subject

19. What angle of view does a reflected light meter read?
RAID system
Similar to a normal lens at about 30 degrees
The difference between light and dark.
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.

20. Why is depth of field greater on a short lens versus a long lens?
3:1 or 4:1
One stop
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.
5 -000 Kelvin

21. The greatest tonal range from black to white is achievable on what kind of paper?
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
stopped down
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.
Glossy paper

22. The amount of motion blur in an image will increase if you do what?
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)
lengthen (or slow) the shutter speed
High Dynamic Range
1) Use a shorter focal length; 2) Move farther away from the subject

23. A tonal correction cannot be accomplished by using a...
ISO
White (255)
Bit
hue/saturation adjustment layer

24. Most lenses are sharpest closed down to how many stops from the widest?
sRGB
1 or 2
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
Click with the neutral-point dropper on the selected color

25. A magic wand tool is used for what?
Selecting portions of the image based on color
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)
1920 pixels by 2400 pixels (4.6 million pixels)
Yellow

26. What is the general rule of thumb for the measurement of a 'normal' lens?
The diagonal measurement of the sensor.
3200 Kelvin
Add cyan
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.

27. As the aperture becomes smaller - what happens to the depth of field?
1) Use a shorter focal length; 2) Move farther away from the subject
It increases
Selectively increasing print exposure - which will make select parts of the image darker
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.

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?
Yellow
Internet = 72 dpi; Newspaper = 150 dpi; Photographic print = 240-300 dpi; Gloss magazine = 400 dpi
A high contrast image
Aperture-Priority

29. The quantity of light that reaches your sensor is controlled by what?
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
Shutter speed & aperture
sRGB
Fair Use

30. A lens set at f/4 admits how much more/less light than one set at f/2.8?
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
1 or 2
Half as much light
Selectively blocking light during print exposure to lighten the area

31. This kind of lens has a variable focal length.
Zoom lens
White (additive primaries are Red - Green Blue)
Blue
emphasizes textures

32. How can you change the brightness of the background when using flash?
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
8 bits
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.
Reflected light meter

33. What is TTL?
3:1 or 4:1
Subtractive primaries (plus black)
four times more
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.

34. What angle of view does an incident meter read?
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.
Very wide at about 180 degrees
Selecting portions of the image based on color
Convex

35. 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?
In the middle
Aperture-priority
A change in illumination
Two (f/8 > f/11 > f/16)

36. What is a thyristor?
The sensor's sensitivity to light
Follow focus
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.
Cyan

37. What is a derivative file?
1/250th
A RAW file that has been altered
White (255)
The diaphragm - the mechanism that controls aperture.

38. What is burning?
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
A mirror and pentaprism
Reciprocal relationship
Selectively increasing print exposure - which will make select parts of the image darker

39. A tall vertical line on the right hand edge of a histogram indicates what?
Flat lighting
Blown highlights
stopped down
5000K

40. The rule of thirds necessitates that the composition be divided into a grid of now many equal rectangles or squares?
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
9
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
Metadata fields that hold info on photographer - subject - and use.

41. This technique allows you to keep a subject that is moving toward you well focused.
Infrared
1) Use a longer lens; 2) Move closer to the subject
Follow focus
Shutter speed & aperture

42. What is the term used to describe human's change in perception of a color under different light sources?
Aperture and shutter
Because you can move in close to the subject
The impression human vision gives
Metamerism

43. when adjusting an image with levels - if you want to make any color neutral quickly - what would you do?
Levels adjustment
Inkjet black & white printing where color cartridges are replaced with shades of gray - resulting in smooth tones and slight color cast
A RAW file that has been altered
Click with the neutral-point dropper on the selected color

44. How is brightness and contrast best controlled in Photoshop?
Levels adjustment
1) Use a shorter focal length; 2) Move farther away from the subject
All colors
Blue & Green

45. The useable exposure range of a sensor - or the range of subject brightness is called what?
Butterfly lighting
The difference between light and dark.
dynamic range (not to be confused with gamut)
Cyan

46. What angle of view does a spot meter read?
Shutter-Priority
White (255)
The difference between light and dark.
Maybe as little as 0.5 degrees or 1 degree

47. When the subtractive primaries are added together equally - what is created?
No change. The EXPOSURE doesn't change or it would also change the background as well. Move the lights to adjust.
Black. Subtractive primaries are Magenta - Yellow - Cyan
Actual Pixel view
The brightness of all the pixels in an image

48. Blue is opposite what color on the color wheel?
Yellow
Metadata fields that hold info on photographer - subject - and use.
ISO
High Dynamic Range

49. If an image is too cyan - what color adjustment should be made in Photoshop to correct it?
Red - Yellow - Green - Cyan - Blue - Magenta
Similar to a normal lens at about 30 degrees
Add red
To strike the side of the face away from the camera.

50. Resolution refers to what?
The amount of light reflected back from the subject during exposure.
The number of pixels per unit of length in a image
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
factor of 2 = 1 stop compensation. (Each time a factor doubles - it's one additional stop)