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Certified Professional Photographer

Instructions:

Answer 50 questions in 15 minutes.
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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. In short lighting - where is the main light placed?
Follow focus
To strike the side of the face away from the camera.
1 1/3 stops
Lasso tool

2. All objects beyond the closest distance in focus will be sharp when this appears within the DOF scale.
256
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.
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.

3. What angle of view does a reflected light meter read?
Similar to a normal lens at about 30 degrees
Front lighting
hue/saturation adjustment layer
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.

4. Sharpness from near to far is controlled by what?
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically
Aperture
Zoom lens
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."

5. What kind of meter is built in to most cameras?
factor of 2 = 1 stop compensation. (Each time a factor doubles - it's one additional stop)
Reflected light meter
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.
Shutter-priority

6. Tungsten is approximately what color temperature?
Shutter-Priority
stopped down
3200 Kelvin
Add magenta

7. What is the term used to describe human's change in perception of a color under different light sources?
Metamerism
8 bits
(X times Y = exposure) Intensity (aperture) x Time (shutter)
Add cyan

8. 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.
Shutter-priority
Fair Use
Similar to a normal lens at about 30 degrees

9. Resolution refers to what?
Add red
The number of pixels per unit of length in a image
Reciprocal relationship
Glossy paper

10. What is an element and where is it found?
The brightness of all the pixels in an image
Depth of field
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.
Subtractive primaries (plus black)

11. Color systems divide all colors into which three measurements?
To strike the side of the face away from the camera.
Hue - Luminance - Saturation
Cyan
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors

12. Generally - traditional portraits use what lighting ratio?
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
3:1 or 4:1
Aperture-priority
1 1/3 stops

13. A histogram with peaks on either end of the histogram and a deep valley in between represents what?
A high contrast image
a sensor (or film's) sensitivity to light
Dynamic range
Blown highlights

14. A ring of thin - overlapping leaves located inside the lens is called what?
Small light source at an angle to the subject
Direct sun at 11 -000 Kelvin
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
The diaphragm - the mechanism that controls aperture.

15. According to the Inverse Square Law - at a distance of 10 feet from a flash - the area illuminated receives how much more/less light than the area illuminated at 20 feet from the flash?
1 or 2
The amount of information contained in each pixel
four times more
The number of pixels per unit of length in a image

16. 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.
Levels adjustment
Snoot
To strike the side of the face away from the camera.

17. Convex lenses cause light rays to do what?
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.
bend toward each other and converge at the focal point.
A new layer
Aperture and shutter

18. To produce optimal sharpness - detail - and resolution - is a higher or lower ISO setting better?
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically
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)
Lower
aperture diameter

19. As the aperture becomes smaller - what happens to the depth of field?
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
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 light-sensitive cell or sensor inside a flash unit that measures the amount of light reflecting off a subject when a flash is used.
It increases

20. A lens set at f/4 admits how much more/less light than one set at f/2.8?
Keeps a moving subject sharp while blurring the background
Creates deep shadows in eye pockets - under nose - and chin.
Yellow
Half as much light

21. This light modifier can be used to highlight a specific area of the subject.
5 -000 Kelvin
Depth of field
Yellow
Snoot

22. How would you define exposure in mathematical terms?
Reciprocal relationship
hue/saturation adjustment layer
(X times Y = exposure) Intensity (aperture) x Time (shutter)
8 bits

23. What is dodging?
Bit
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
Selectively blocking light during print exposure to lighten the area
Reflected light meter

24. Panning does what?
Keeps a moving subject sharp while blurring the background
Actual Pixel view
A RAW file that has been altered
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.

25. A histogram shows what in an image?
Reciprocal relationship
The brightness of all the pixels in an image
To send accurate color requirements to a printer.
Depth of field

26. What do TTL systems react to?
Yellow
A RAW file that has been altered
The amount of light reflected back from the subject during exposure.
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.

27. What is the CCD or CMOS sensor?

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28. What is the usable exposure range - or range of subject brightness called?
Selectively blocking light during print exposure to lighten the area
Dynamic range
Shutter-Priority
Cyan

29. 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.
Infrared
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.
Levels adjustment

30. What is interpolated resolution?
To strike the side of the face away from the camera.
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
More of the background and foreground are sharp.
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.

31. If an image is too blue - what color adjustment should be made in Photoshop to correct it?
8 stops
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
Add 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.

32. As the aperture is stopped down - what happens to sharpness?
More of the background and foreground are sharp.
Lower
lengthen (or slow) the shutter speed
emphasizes textures

33. What is the general rule of thumb for the measurement of a 'normal' lens?
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.
The diagonal measurement of the sensor.
flat - low contrast light
Memory card / flash card / compact flash card

34. 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?
Soft proofing
Aperture-priority
Similar to a normal lens at about 30 degrees
Use and adjustment layer

35. When the size of the aperture is decreased - it is said to be what?
Infrared
Creates deep shadows in eye pockets - under nose - and chin.
A high contrast image
stopped down

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

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37. What is a BYTE?
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.
The diaphragm - the mechanism that controls aperture.
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.
Actual Pixel view

38. To emphasize texture in a portrait - what kind of light source is recommended?
All colors
Small light source at an angle to the subject
Similar to a normal lens at about 30 degrees
A raster image

39. Name 3 ways to make a tonal adjustment in Photoshop.
International Organization for Standardization
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment
Levels adjustment
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.

40. A filter with a factor of 2 requires how many stops of compensation?

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41. The histogram of a properly exposed grey card will show a vertical bar where on the histogram?
sensor
In the middle
Blue
Shutter-Priority

42. The relative aperture is equal to the lens focal length divided by what?
aperture diameter
1) Use a longer lens; 2) Move closer to the subject
A mirror and pentaprism
White (additive primaries are Red - Green Blue)

43. What is a derivative file?
Add cyan
A RAW file that has been altered
Black. Subtractive primaries are Magenta - Yellow - Cyan
Follow focus

44. What does ISO stand for?
International Organization for Standardization
8 bits
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.
Add yellow

45. The quantity of light that reaches your sensor is controlled by what?
Shutter speed & aperture
Levels adjustment
Flat lighting
ISO

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

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47. The image transmitted by the lens is recorded by the what?
sensor
Aperture and shutter
8 bits
A change in illumination

48. How is brightness and contrast best controlled in Photoshop?
Levels adjustment
Soft proofing
One stop
The number of pixels per unit of length in a image

49. An SLR camera uses what to allow you to see exactly what you'll photograph?
Two (f/8 > f/11 > f/16)
Half as much light
A mirror and pentaprism
sensor

50. What image adjustment tool uses a histogram display to alter an image?
8 stops
Levels adjustment
The difference between light and dark.
The diagonal measurement of the sensor.

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