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 type of file format compresses images by discarding pixels; therefore - each time an images is compressed - it loses pixels.
JPEG
Because you can move in close to the subject
Yellow
Cyan

2. If an image is too red - what color adjustment should be made in Photoshop to correct it?
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.
Metamerism
(X times Y = exposure) Intensity (aperture) x Time (shutter)
Add cyan

3. If an image is too yellow - what color adjustment should be made in Photoshop to correct it?
Aperture-Priority
Actual Pixel view
The sensor's sensitivity to light
Add blue

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

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5. Printers use what set of colors?
sRGB
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
5000K
Subtractive primaries (plus black)

6. All objects beyond the closest distance in focus will be sharp when this appears within the DOF scale.
Bit
1) Use a longer lens; 2) Move closer to the subject
lengthen (or slow) the shutter speed
Infinity

7. If an image is too green - what color adjustment should be made in Photoshop to correct it?
Add magenta
four times more
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
JPEG

8. What does "photomacrograph" or "macrophotograph" mean?
Fisheye
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
Blue
Reciprocal relationship

9. To emphasize texture in a portrait - what kind of light source is recommended?
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.
Reflected light meter
Small light source at an angle to the subject
Dynamic range

10. What determines what will be a 'normal' focal length lens on a particular camera?
It increases
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
Blue

11. Generally - how much exposure compensation (in stops) should be used when using a polarizing filter?
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.
Aperture and shutter
Blue & Green
1 1/3 stops

12. In a 2:1 ratio - the shadow side of the subject would meter at X stop(s) less than the highlight side.
Butterfly lighting
sRGB
One stop less
It increases

13. What is a Bit?
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
Parallax
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.
Contrast

14. If an image is too cyan - what color adjustment should be made in Photoshop to correct it?
Add red
It increases
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.
1) Use a longer lens; 2) Move closer to the subject

15. The area of acceptable sharpness in an image is called what?
Infinity
Depth of field
factor of 2 = 1 stop compensation. (Each time a factor doubles - it's one additional stop)
Blown highlights

16. What is the CCD or CMOS sensor?

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17. 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.
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment
Blown highlights
flat - low contrast light

18. Contrast measures what in a print?
Keeps a moving subject sharp while blurring the background
A raster image
Creates deep shadows in eye pockets - under nose - and chin.
The difference between light and dark.

19. Printers use how many bits per channel of information when printing?
3:1 or 4:1
The pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)
3200 Kelvin
8 bits

20. As the aperture becomes smaller - what happens to the depth of field?
Levels adjustment
It increases
Follow focus
Red - Yellow - Green - Cyan - Blue - Magenta

21. What do TTL systems react to?
Fair Use
The amount of light reflected back from the subject during exposure.
1) Use a longer lens; 2) Move closer to the subject
High Dynamic Range

22. What do the bars on the right of a histogram represent?
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
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.
No change. The EXPOSURE doesn't change or it would also change the background as well. Move the lights to adjust.
White (255)

23. Color systems divide all colors into which three measurements?
The brightness of all the pixels in an image
Hue - Luminance - Saturation
Selecting portions of the image based on color
The sensor that converts the image from analog to digital (1's and 0's) CCD=charge coupled device; CMOS=complementary metal-oxide semiconductor

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

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25. Whenever another image is copied or moved into a file - Photoshop automatically creates what?
Soft proofing
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
A new layer
More of the background and foreground are sharp.

26. What is a derivative file?
The impression human vision gives
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
A RAW file that has been altered

27. How is brightness and contrast best controlled in Photoshop?
Levels adjustment
Two (f/8 > f/11 > f/16)
Aperture-priority
Metamerism

28. What do the bars on the left of a histogram represent?
The sensor's sensitivity to light
Bit
Magenta
Black (0)

29. An SLR camera uses what to allow you to see exactly what you'll photograph?
Shutter-priority
Metadata fields that hold info on photographer - subject - and use.
Selectively increasing print exposure - which will make select parts of the image darker
A mirror and pentaprism

30. Most modern lenses are based on this kind of lens.
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.
bend toward each other and converge at the focal point.
Convex
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.

31. When the subtractive primaries are added together equally - what is created?
The pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)
Black. Subtractive primaries are Magenta - Yellow - Cyan
Broad lighting
Total number of pixels

32. The amount of motion blur in an image will increase if you do what?
lengthen (or slow) the shutter speed
Convex
(X times Y = exposure) Intensity (aperture) x Time (shutter)
The sensor's sensitivity to light

33. The smallest unit of digital information is called a what?
The number of pixels per unit of length in a image
Bit
It increases
Two (f/8 > f/11 > f/16)

34. What Photoshop tool allows you to select an area of any size or shape by drawing freehand?
Selectively blocking light during print exposure to lighten the area
Lasso tool
One stop
A raster image

35. Most lenses are sharpest closed down to how many stops from the widest?
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
Infrared
1 or 2
5000K

36. What are the effects of top lighting?
A new layer
Selectively blocking light during print exposure to lighten the area
Creates deep shadows in eye pockets - under nose - and chin.
sRGB

37. A general purpose lens will provide an f-stop range of up to how many?
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 change in illumination
8 stops
3200 Kelvin

38. What is interpolated resolution?
One stop less
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
A raster image
The brightness of the light that reaches the sensor

39. An image made of pixels is sometimes called what?
A raster image
Yellow
Aperture - focal length - and distance to the subject
ISO

40. Stopping a lens down from f/8 to f/16 represents a X stop difference.
Levels adjustment
1) Use a longer lens; 2) Move closer to the subject
Two (f/8 > f/11 > f/16)
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."

41. Can you save layers in a JPEG file format?
Blue
Lower
No
Infinity

42. 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?
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.
Memory card / flash card / compact flash card
Very wide at about 180 degrees
Yellow

43. A histogram shows what in an image?
stopped down
The brightness of all the pixels in an image
Levels adjustment
Lower

44. An in-camera reflected meter reading a very light toned scene indicates an exposure of 1/250th at f/8. For a correct exposure - what should you do?
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
The entire range of colors that can be seen - reproduced - or captured. Our eyes have a greater gamut than a print or monitor.
aperture diameter

45. A tonal correction cannot be accomplished by using a...
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.
stopped down
hue/saturation adjustment layer
Aperture

46. To minimize facial wrinkles - this type of lighting is best.
In the middle
RAID system
Fisheye
Front lighting

47. Blue is opposite what color on the color wheel?
Yellow
A high contrast image
The sensor that converts the image from analog to digital (1's and 0's) CCD=charge coupled device; CMOS=complementary metal-oxide semiconductor
Selectively blocking light during print exposure to lighten the area

48. What are the effects of high side lighting?
Very wide at about 180 degrees
Aperture-Priority
Shutter-priority
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.

49. What is the general rule of thumb for the measurement of a 'normal' lens?
Reflected light meter
Follow focus
The diagonal measurement of the sensor.
Small light source at an angle to the subject

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

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