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. This kind of lens has a variable focal length.
Flat lighting
Add green
Incident light meter
Zoom lens

2. when adjusting an image with levels - if you want to make any color neutral quickly - what would you do?
Click with the neutral-point dropper on the selected color
Short lighting.
1 1/3 stops
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

3. This viewing option gives you the most accurate version of your image in Photoshop.
Actual Pixel view
(X times Y = exposure) Intensity (aperture) x Time (shutter)
Aperture
Maybe as little as 0.5 degrees or 1 degree

4. How would you define exposure in mathematical terms?
1920 pixels by 2400 pixels (4.6 million pixels)
A high contrast image
(X times Y = exposure) Intensity (aperture) x Time (shutter)
Variations command

5. 8 bits per pixel gives you how many colors?
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)
256
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
5 -000 Kelvin

6. A magic wand tool is used for what?
1) Use a shorter focal length; 2) Move farther away from the subject
Selecting portions of the image based on color
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.
256

7. 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?
Selecting portions of the image based on color
Glossy paper
Yellow
Variations command

8. 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
Selecting portions of the image based on color
Contrast
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.

9. A tonal correction cannot be accomplished by using a...
hue/saturation adjustment layer
Flattens out the volume of the subject and minimizes textures
3:1 or 4:1
Lower

10. A technique used to maintain sharp focus on a subject that is moving toward you is called what?
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
It increases
Metamerism
Follow focus

11. What is the name of the issue that prevents you from seeing exactly what the lens sees when using a rangefinder camera?
Keeps a moving subject sharp while blurring the background
A high contrast image
Parallax
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)

12. What is gamut?
Yellow
Two (f/8 > f/11 > f/16)
The entire range of colors that can be seen - reproduced - or captured. Our eyes have a greater gamut than a print or monitor.
Maybe as little as 0.5 degrees or 1 degree

13. Daylight is approximately what color temperature?
Levels adjustment
Incident light meter
5 -000 Kelvin
Black. Subtractive primaries are Magenta - Yellow - Cyan

14. As the aperture becomes smaller - what happens to the depth of field?
It increases
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
Add magenta

15. A histogram shows what in an image?
Internet = 72 dpi; Newspaper = 150 dpi; Photographic print = 240-300 dpi; Gloss magazine = 400 dpi
The brightness of all the pixels in an image
Fisheye
It increases

16. Printers use what set of colors?
Subtractive primaries (plus black)
Aperture - focal length - and distance to the subject
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.
Lower

17. What is TTL?
Use and adjustment layer
Aperture-priority
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
Additive (R - G - B)

18. Digital cameras use what set of primary colors?
Additive (R - G - B)
1) Magnification - or the size of the subject; 2) Angle of view
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.
1) Use a longer lens; 2) Move closer to the subject

19. Aperture controls what?
The brightness of the light that reaches the sensor
The diaphragm - the mechanism that controls aperture.
sensor
International Organization for Standardization

20. What do TTL systems react to?
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.
The amount of light reflected back from the subject during exposure.
Add green
Maybe as little as 0.5 degrees or 1 degree

21. Focal length controls what?
Additive (R - G - B)
1) Magnification - or the size of the subject; 2) Angle of view
Keeps a moving subject sharp while blurring the background
White (additive primaries are Red - Green Blue)

22. 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.
Soft proofing
Reflected light meter
Shutter-Priority

23. The area of acceptable sharpness in an image is called what?
Depth of field
flat - low contrast light
A high contrast image
Additive (R - G - B)

24. If an image is too red - what color adjustment should be made in Photoshop to correct it?
Add cyan
Cyan
A change in illumination
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.

25. What is the best color profile for web images?
Add blue
The amount of light reflected back from the subject during exposure.
sRGB
aperture diameter

26. When the subtractive primaries are added together equally - what is created?
Additive (R - G - B)
Aperture-priority
Black. Subtractive primaries are Magenta - Yellow - Cyan
Aperture - focal length - and distance to the subject

27. Stopping a lens down from f/8 to f/16 represents a X stop difference.
Two (f/8 > f/11 > f/16)
Front 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.
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.

28. What does "photomacrograph" or "macrophotograph" mean?
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
Black (0)
Because you can move in close to the subject
The brightness of all the pixels in an image

29. If you must move to reduce the amount of flash reaching your subject - how far do you move?
Memory card / flash card / compact flash card
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 entire range of colors that can be seen - reproduced - or captured. Our eyes have a greater gamut than a print or monitor.
Aperture-priority

30. A ring of thin - overlapping leaves located inside the lens is called what?
The diaphragm - the mechanism that controls aperture.
Shutter-priority
5 -000 Kelvin
Fisheye

31. What does side lighting emphasize?
It increases
lens-to-subject distance
emphasizes textures
Shutter speed & aperture

32. Photoshop's command for a simple way to start using color balance is what?
Variations command
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.
All colors
Snoot

33. In a curves adjustment layer - what does the shape of the curve indicate?
Contrast
Lower
One stop
9

34. What angle should a polarizing filter be to the sun for best results?
Blue & Green
256
Magenta
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.

35. What light source has the highest color temperature?
Direct sun at 11 -000 Kelvin
5000K
Add red
5 -000 Kelvin

36. When the additive primaries are mixed together equally - what is created?
hue/saturation adjustment layer
1) Magnification - or the size of the subject; 2) Angle of view
A mirror and pentaprism
White (additive primaries are Red - Green Blue)

37. A color image with smooth gradiations requires at least what bit depth?
Aperture and shutter
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
The brightness of the light that reaches the sensor
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.

38. To emphasize texture in a portrait - what kind of light source is recommended?
Total number of pixels
Small light source at an angle to the subject
To strike the side of the face away from the camera.
Flattens out the volume of the subject and minimizes textures

39. What image adjustment tool uses a histogram display to alter an image?
Levels adjustment
Half as much light
Add magenta
Black. Subtractive primaries are Magenta - Yellow - Cyan

40. The quantity of light that reaches your sensor is controlled by what?
Incident light meter
It increases
One stop
Shutter speed & aperture

41. This technique allows you to keep a subject that is moving toward you well focused.
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.
Depth of field
Shutter-priority
Follow focus

42. What is the term used to describe human's change in perception of a color under different light sources?
The sensor that converts the image from analog to digital (1's and 0's) CCD=charge coupled device; CMOS=complementary metal-oxide semiconductor
Short lighting
Infinity
Metamerism

43. When mixed in varying proportion - the subtractive primary colors produce what?
Follow focus
hue/saturation adjustment layer
All colors
ISO

44. Printers use how many bits per channel of information when printing?
The pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)
To strike the side of the face away from the camera.
8 bits
Glossy paper

45. Whenever another image is copied or moved into a file - Photoshop automatically creates what?
A new layer
Metadata
Selectively blocking light during print exposure to lighten the area
Very wide at about 180 degrees

46. What angle of view does a reflected light meter read?
Similar to a normal lens at about 30 degrees
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.
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.

47. Most lenses are sharpest closed down to how many stops from the widest?
1 or 2
stopped down
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.
A high contrast image

48. The image transmitted by the lens is recorded by the what?
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically
A new layer
sensor
Direct sun at 11 -000 Kelvin

49. 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).
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)
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.
3200 Kelvin

50. What would you use an ICC profile for?
To send accurate color requirements to a printer.
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
3200 Kelvin
The sensor's sensitivity to light