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. Color systems divide all colors into which three measurements?
Incident light meter
Click with the neutral-point dropper on the selected color
Hue - Luminance - Saturation
Magenta

2. In the 20th century - black & white photographers used the Zone system to tame excessive contrast. Now - digital photographers use what?
A raster image
stopped down
One stop
High Dynamic Range

3. This kind of lens has a variable focal length.
Zoom lens
3200 Kelvin
A new layer
Total number of pixels

4. A histogram with peaks on either end of the histogram and a deep valley in between represents what?
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 brightness of all the pixels in an image
Very wide at about 180 degrees
A high contrast image

5. If an image is too magenta - what color adjustment should be made in Photoshop to correct it?
Add green
To send accurate color requirements to a printer.
1) Use a longer lens; 2) Move closer to the subject
Selectively blocking light during print exposure to lighten the area

6. Why is depth of field greater on a short lens versus a long lens?
A RAW file that has been altered
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.
Yellow
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.

7. The image transmitted by the lens is recorded by the what?
sensor
5000K
Front lighting
The brightness of the light that reaches the sensor

8. If an image is too blue - what color adjustment should be made in Photoshop to correct it?
Add yellow
Because you can move in close to the subject
Infrared
Cyan

9. Perspective is affected by what?
9
Blue & Green
lens-to-subject distance
A mirror and pentaprism

10. When doing close-up work - what happens to the depth of field when the subject is closer to the lens?
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically
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.
Add blue
Dynamic range

11. Doubling the aperture setting creates how many stops difference in the amount of light reaching the sensor?
One stop
Selectively blocking light during print exposure to lighten the area
A new layer
JPEG

12. How does 'unsharp mask' work?
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.
a sensor (or film's) sensitivity to light
1) Use a longer lens; 2) Move closer to the subject
JPEG

13. This technique allows you to keep a subject that is moving toward you well focused.
Follow focus
Creates deep shadows in eye pockets - under nose - and chin.
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
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.

14. In a 2:1 ratio - the shadow side of the subject would meter at X stop(s) less than the highlight side.
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)
No change. The EXPOSURE doesn't change or it would also change the background as well. Move the lights to adjust.
One stop less
Magenta

15. What angle of view does an incident meter read?
Add cyan
The diagonal measurement of the sensor.
Very wide at about 180 degrees
It increases

16. What is the suggested shutter speed to stop action of a child running parallel to the film plan - about 25 feet from the camera?
Convex
1/250th
Levels adjustment
Cyan

17. The histogram of a properly exposed grey card will show a vertical bar where on the histogram?
hue/saturation adjustment layer
JPEG
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
In the middle

18. 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?
Shutter-priority
A RAW file that has been altered
Selectively blocking light during print exposure to lighten the area
Short lighting

19. What is the CCD or CMOS sensor?

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

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21. When the size of the aperture is decreased - it is said to be what?
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
The impression human vision gives
stopped down
The amount of information contained in each pixel

22. The useable exposure range of a sensor - or the range of subject brightness is called what?
A RAW file that has been altered
dynamic range (not to be confused with gamut)
Actual Pixel view
sensor

23. A lens with a very wide angle of view and produces barrel distortion is what kind of lens?
1920 pixels by 2400 pixels (4.6 million pixels)
Lasso tool
Metadata
Fisheye

24. What is the term used to describe data contained in a digital image?
Direct sun at 11 -000 Kelvin
8 bits
Metadata
The sensor's sensitivity to light

25. Using this kind of automatic exposure setting on the camera - you set the aperture and the camera sets the shutter speed.
No change. The EXPOSURE doesn't change or it would also change the background as well. Move the lights to adjust.
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
Aperture-Priority
Zoom lens

26. According to the rule of thirds - where should the important parts of an image fall?
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
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically
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.

27. 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
1 or 2
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.
Cyan

28. This stores electronic images captured in a digital camera until they can be transferred to a computer.
Convex
Short lighting.
Memory card / flash card / compact flash card
Subtractive primaries (plus black)

29. What are the three main factors that affect depth of field?
Front lighting
White (255)
Aperture - focal length - and distance to the subject
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)

30. What two controls adjust the amount of light that reaches the sensor?
High Dynamic Range
1) Use a longer lens; 2) Move closer to the subject
No
Aperture and shutter

31. The quantity of light that reaches your sensor is controlled by what?
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.
Shutter speed & aperture
3:1 or 4:1
Click with the neutral-point dropper on the selected color

32. Printers use how many bits per channel of information when printing?
Black. Subtractive primaries are Magenta - Yellow - Cyan
8 bits
1) Magnification - or the size of the subject; 2) Angle of view
The diaphragm - the mechanism that controls aperture.

33. What is interpolated resolution?
Yellow
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.
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
Fisheye

34. When the subtractive primaries are added together equally - what is created?
Selectively blocking light during print exposure to lighten the area
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically
The diagonal measurement of the sensor.
Black. Subtractive primaries are Magenta - Yellow - Cyan

35. What is the usable exposure range - or range of subject brightness called?
The impression human vision gives
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.
9
Dynamic range

36. If an image is too cyan - what color adjustment should be made in Photoshop to correct it?
Metamerism
Cyan
Add red
bend toward each other and converge at the focal point.

37. An 8x10 at 240 dpi will have a resolution of what?
Selecting portions of the image based on color
Soft proofing
Variations command
1920 pixels by 2400 pixels (4.6 million pixels)

38. What are the effects of top lighting?
sensor
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.
3:1 or 4:1
Creates deep shadows in eye pockets - under nose - and chin.

39. A general purpose lens will provide an f-stop range of up to how many?
Parallax
8 stops
No
Infrared

40. Cyan is composed of equal parts of what two colors?
Red - Yellow - Green - Cyan - Blue - Magenta
Blue & Green
Yellow
Half as much light

41. As the aperture is stopped down - what happens to sharpness?
More of the background and foreground are sharp.
stopped down
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.
The entire range of colors that can be seen - reproduced - or captured. Our eyes have a greater gamut than a print or monitor.

42. What do the bars on the right of a histogram represent?
White (255)
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
Selectively increasing print exposure - which will make select parts of the image darker
Red - Yellow - Green - Cyan - Blue - Magenta

43. Digital cameras use what set of primary colors?
Add blue
Additive (R - G - B)
Dynamic range
Butterfly lighting

44. What light source has the highest color temperature?
Shutter-Priority
Similar to a normal lens at about 30 degrees
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.
Direct sun at 11 -000 Kelvin

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

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46. What are the effects of high side lighting?
Add yellow
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.
JPEG
Dynamic range

47. A histogram shows what in an image?
The brightness of all the pixels in an image
Two (f/8 > f/11 > f/16)
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.
Blue & Green

48. An image made of pixels is sometimes called what?
1) Use a shorter focal length; 2) Move farther away from the subject
emphasizes textures
A raster image
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.

49. Daylight is approximately what color temperature?
No change. The EXPOSURE doesn't change or it would also change the background as well. Move the lights to adjust.
More of the background and foreground are sharp.
The difference between light and dark.
5 -000 Kelvin

50. What is dodging?
1 or 2
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
Short lighting
Selectively blocking light during print exposure to lighten the area