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 a thyristor?
Incident light meter
Infinity
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.
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.

2. What kind of film can help reduce haze in a landscape?
Actual Pixel view
International Organization for Standardization
RAID system
Infrared

3. An 8x10 at 240 dpi will have a resolution of what?
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.
In the middle
A RAW file that has been altered
1920 pixels by 2400 pixels (4.6 million pixels)

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

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5. 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.
Blue & Green
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.
Creates deep shadows in eye pockets - under nose - and chin.

6. Perspective is affected by what?
lens-to-subject distance
Maybe as little as 0.5 degrees or 1 degree
Lower
3200 Kelvin

7. Generally - traditional portraits use what lighting ratio?
Actual Pixel view
3:1 or 4:1
The brightness of the light that reaches the sensor
256

8. What is the usable exposure range - or range of subject brightness called?
Follow focus
Infrared
1920 pixels by 2400 pixels (4.6 million pixels)
Dynamic range

9. Using this kind of automatic exposure setting on the camera - you set the aperture and the camera sets the shutter speed.
The entire range of colors that can be seen - reproduced - or captured. Our eyes have a greater gamut than a print or monitor.
Aperture-Priority
A raster image
Short lighting

10. Panning does what?
hue/saturation adjustment layer
Flat lighting
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment
Keeps a moving subject sharp while blurring the background

11. What kind of lighting pattern is useful to widen a subject?
sensor
Broad lighting
Convex
Follow focus

12. What is focal length - technically?
Direct sun at 11 -000 Kelvin
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 distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
sensor

13. An image made of pixels is sometimes called what?
A raster image
8 stops
1) Use a longer lens; 2) Move closer to the subject
Shutter speed & aperture

14. This viewing option gives you the most accurate version of your image in Photoshop.
factor of 2 = 1 stop compensation. (Each time a factor doubles - it's one additional stop)
Actual Pixel view
RAID system
Shutter-priority

15. 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.
The brightness of all the pixels in an image
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.
Direct sun at 11 -000 Kelvin

16. What are the three main factors that affect depth of field?
Follow focus
White (additive primaries are Red - Green Blue)
1) Use a shorter focal length; 2) Move farther away from the subject
Aperture - focal length - and distance to the subject

17. This type of file format compresses images by discarding pixels; therefore - each time an images is compressed - it loses pixels.
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.
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.
JPEG
RAID system

18. Digital cameras use what set of primary colors?
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
Aperture and shutter
Zoom lens
Additive (R - G - B)

19. What is dodging?
1) Use a longer lens; 2) Move closer to the subject
Selectively blocking light during print exposure to lighten the area
Very wide at about 180 degrees
Blown highlights

20. What is a derivative file?
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.
stopped down
The brightness of the light that reaches the sensor
A RAW file that has been altered

21. If an image is too yellow - what color adjustment should be made in Photoshop to correct it?
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
Add blue
A change in illumination

22. 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.
Glossy paper
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.
Total number of pixels

23. In the 20th century - black & white photographers used the Zone system to tame excessive contrast. Now - digital photographers use what?
Direct sun at 11 -000 Kelvin
High Dynamic Range
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.
Convex

24. Generally - how much exposure compensation (in stops) should be used when using a polarizing filter?
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.
1 1/3 stops
Reflected light meter
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."

25. Instead of permanently altering your image when adjusting for color and value - what should you do?
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
Magenta
1) Magnification - or the size of the subject; 2) Angle of view
Use and adjustment layer

26. The relative aperture is equal to the lens focal length divided by what?
aperture diameter
Bit
JPEG
White (additive primaries are Red - Green Blue)

27. When the additive primaries are mixed together equally - what is created?
White (additive primaries are Red - Green Blue)
Memory card / flash card / compact flash card
256
Zoom lens

28. A tall vertical line on the right hand edge of a histogram indicates what?
Actual Pixel view
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
The brightness of the light that reaches the sensor

29. What angle of view does a reflected light meter read?
Short lighting
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.
Similar to a normal lens at about 30 degrees
sRGB

30. What color is opposite Red on the color wheel?
Levels adjustment
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.
A RAW file that has been altered
Cyan

31. As the aperture becomes smaller - what happens to the depth of field?
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
It increases
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.

32. If an image is too cyan - what color adjustment should be made in Photoshop to correct it?
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.
Add red
More of the background and foreground are sharp.
Blue

33. Resolution refers to what?
The number of pixels per unit of length in a image
factor of 2 = 1 stop compensation. (Each time a factor doubles - it's one additional stop)
Dynamic range
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.

34. What do TTL systems react to?
Similar to a normal lens at about 30 degrees
The amount of light reflected back from the subject during exposure.
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)
Selectively increasing print exposure - which will make select parts of the image darker

35. This kind of meter is preferred by photographers working in a studio situation where lighting conditions can be altered.
Flattens out the volume of the subject and minimizes textures
3200 Kelvin
sRGB
Incident light meter

36. The area of acceptable sharpness in an image is called what?
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
The sensor's sensitivity to light
One stop less
Depth of field

37. A color image with smooth gradiations requires at least what bit depth?
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment
The number of pixels per unit of length in a image
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
No

38. 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
A RAW file that has been altered
factor of 2 = 1 stop compensation. (Each time a factor doubles - it's one additional stop)
Flattens out the volume of the subject and minimizes textures

39. What angle of view does an incident meter read?
Direct sun at 11 -000 Kelvin
Flat lighting
Very wide at about 180 degrees
A high contrast image

40. The useable exposure range of a sensor - or the range of subject brightness is called what?
sensor
5 -000 Kelvin
dynamic range (not to be confused with gamut)
Actual Pixel view

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?
Infinity
Metamerism
White (additive primaries are Red - Green Blue)
1/250th

42. What are the effects of high side lighting?
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.
Actual Pixel view
Infinity

43. If an image is too blue - what color adjustment should be made in Photoshop to correct it?
Levels adjustment
A new layer
Add yellow
Variations command

44. How can you change the brightness of the background when using flash?
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.
Aperture and shutter
hue/saturation adjustment layer
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.

45. Why is depth of field greater on a short lens versus a long lens?
The number of pixels per unit of length in a image
The amount of light reflected back from the subject during exposure.
Butterfly lighting
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.

46. If an image is too magenta - what color adjustment should be made in Photoshop to correct it?
Aperture-Priority
In the middle
Add green
International Organization for Standardization

47. A histogram with peaks on either end of the histogram and a deep valley in between represents what?
One stop
No change. The EXPOSURE doesn't change or it would also change the background as well. Move the lights to adjust.
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
A high contrast image

48. Tungsten is approximately what color temperature?
3200 Kelvin
9
Incident light meter
Follow focus

49. What is the CCD or CMOS sensor?

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50. This kind of lens has a variable focal length.
dynamic range (not to be confused with gamut)
The number of pixels per unit of length in a image
Zoom lens
A change in illumination