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. The area of acceptable sharpness in an image is called what?
Red - Yellow - Green - Cyan - Blue - Magenta
Depth of field
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.
Front lighting

2. Tungsten is approximately what color temperature?
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.
A raster image
3200 Kelvin
A new layer

3. The smallest unit of digital information is called a what?
Broad lighting
Bit
Follow focus
Yellow

4. If an image is too blue - what color adjustment should be made in Photoshop to correct it?
Bit
Add yellow
Subtractive primaries (plus black)
Soft proofing

5. An 8x10 at 240 dpi will have a resolution of what?
1920 pixels by 2400 pixels (4.6 million pixels)
A RAW file that has been altered
Dynamic range
Incident light meter

6. What is interpolated resolution?
Actual Pixel view
Click with the neutral-point dropper on the selected color
9
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.

7. What kind of lighting patter is useful to narrow a face?
dynamic range (not to be confused with gamut)
Selectively increasing print exposure - which will make select parts of the image darker
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
Short lighting

8. If an image is too cyan - what color adjustment should be made in Photoshop to correct it?
Selecting portions of the image based on color
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
Add red
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.

9. What is the general rule of thumb for the measurement of a 'normal' lens?
The diagonal measurement of the sensor.
flat - low contrast light
To strike the side of the face away from the camera.
Internet = 72 dpi; Newspaper = 150 dpi; Photographic print = 240-300 dpi; Gloss magazine = 400 dpi

10. What is a thyristor?
lens-to-subject distance
Cyan
8 bits
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.

11. What do TTL systems react to?
Contrast
Metadata fields that hold info on photographer - subject - and use.
The amount of light reflected back from the subject during exposure.
Blue & Green

12. What are the three main factors that affect depth of field?
Aperture - focal length - and distance to the subject
Blown highlights
1/250th
Reflected light meter

13. What is the usable exposure range - or range of subject brightness called?
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
Metadata
sRGB
Dynamic range

14. Bit depth refers to what?
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
The amount of information contained in each pixel
Infinity

15. In the 20th century - black & white photographers used the Zone system to tame excessive contrast. Now - digital photographers use what?
High Dynamic Range
Maybe as little as 0.5 degrees or 1 degree
(X times Y = exposure) Intensity (aperture) x Time (shutter)
Flattens out the volume of the subject and minimizes textures

16. What is burning?
Reflected light meter
Cyan
Bit
Selectively increasing print exposure - which will make select parts of the image darker

17. 8 bits per pixel gives you how many colors?
256
To send accurate color requirements to a printer.
Infrared
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.

18. What is an element and where is it found?
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.
hue/saturation adjustment layer
Variations command
Flat lighting

19. How is brightness and contrast best controlled in Photoshop?
3200 Kelvin
Levels adjustment
All colors
dynamic range (not to be confused with gamut)

20. Perspective is affected by what?
JPEG
One stop less
lens-to-subject distance
aperture diameter

21. What is TTL?
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
Additive (R - G - B)
One stop less
A RAW file that has been altered

22. Most lenses are sharpest closed down to how many stops from the widest?
1 or 2
Inkjet black & white printing where color cartridges are replaced with shades of gray - resulting in smooth tones and slight color cast
The diagonal measurement of the sensor.
bend toward each other and converge at the focal point.

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

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24. What do the bars on the right of a histogram represent?
Hue - Luminance - Saturation
White (255)
To send accurate color requirements to a printer.
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.

25. What is the inverse square law?
ISO
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.
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.

26. An image made of pixels is sometimes called what?
A raster image
Magenta
Aperture-priority
The difference between light and dark.

27. A tonal correction cannot be accomplished by using a...
hue/saturation adjustment layer
Broad lighting
Memory card / flash card / compact flash card
The impression human vision gives

28. What is the term used to describe data contained in a digital image?
A new layer
a sensor (or film's) sensitivity to light
Cyan
Metadata

29. In a digital image - the images file sizes corresponds to the total number of what in the image?
Total number of pixels
Maybe as little as 0.5 degrees or 1 degree
four times more
Lower

30. An in-camera reflected meter reading a very dark scene indicates an exposure of 1/250th at f/8. For a correct exposure - 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.
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.
ISO
One stop less

31. What is a BYTE?
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.
Because you can move in close to the subject
emphasizes textures
sensor

32. An incident-exposure reading for a fair-skinned subject reads f/8 - 1/125th at 100 ISO. The next subject is very dark skinned. What is the proper exposure for the second subject?

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33. 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.
Glossy paper
(X times Y = exposure) Intensity (aperture) x Time (shutter)
lens-to-subject distance

34. What is the name of the technique used to make a monitor look like what you will see on your print?
Follow focus
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment
Soft proofing
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.

35. A ring of thin - overlapping leaves located inside the lens is called what?
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.
A raster image
Aperture and shutter
The diaphragm - the mechanism that controls aperture.

36. Whenever another image is copied or moved into a file - Photoshop automatically creates what?
Hue - Luminance - Saturation
8 bits
Follow focus
A new layer

37. What would you use an ICC profile for?
To send accurate color requirements to a printer.
Dynamic range
Contrast
Additive (R - G - B)

38. 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?
Levels adjustment
Shutter-priority
lengthen (or slow) the shutter speed
Add green

39. How would you define exposure in mathematical terms?
Half as much light
(X times Y = exposure) Intensity (aperture) x Time (shutter)
The brightness of all the pixels in an image
The number of pixels per unit of length in a image

40. If you must move to reduce the amount of flash reaching your subject - how far do you move?
Very wide at about 180 degrees
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.
Magenta
The difference between light and dark.

41. If an image is too yellow - what color adjustment should be made in Photoshop to correct it?
Add blue
8 bits
(X times Y = exposure) Intensity (aperture) x Time (shutter)
A change in illumination

42. A color image with smooth gradiations requires at least what bit depth?
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
Yellow
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
It increases

43. What do the bars on the left of a histogram represent?
White (additive primaries are Red - Green Blue)
Black (0)
Incident light meter
Infrared

44. 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
The entire range of colors that can be seen - reproduced - or captured. Our eyes have a greater gamut than a print or monitor.
Add magenta

45. Blue is opposite what color on the color wheel?
Yellow
The sensor that converts the image from analog to digital (1's and 0's) CCD=charge coupled device; CMOS=complementary metal-oxide semiconductor
The diagonal measurement of the sensor.
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)

46. 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?
Very wide at about 180 degrees
Yellow
Selecting portions of the image based on color
It increases

47. This stores electronic images captured in a digital camera until they can be transferred to a computer.
Follow focus
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.
Memory card / flash card / compact flash card
Blue & Green

48. This kind of meter is preferred by photographers working in a studio situation where lighting conditions can be altered.
Incident light meter
stopped down
Inkjet black & white printing where color cartridges are replaced with shades of gray - resulting in smooth tones and slight color cast
Lasso tool

49. Focal length controls what?
The sensor's sensitivity to light
5 -000 Kelvin
1) Magnification - or the size of the subject; 2) Angle of view
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.

50. To minimize facial wrinkles - this type of lighting is best.
High Dynamic Range
Front lighting
sRGB
One stop less