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 focal length - technically?
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
Selectively increasing print exposure - which will make select parts of the image darker
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.
stopped down

2. In a curves adjustment layer - what does the shape of the curve indicate?
flat - low contrast light
Contrast
Bit
Half as much light

3. Resolution refers to what?
The number of pixels per unit of length in a image
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.
Glossy paper
Selectively increasing print exposure - which will make select parts of the image darker

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

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5. 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?
The number of pixels per unit of length in a image
Subtractive primaries (plus black)
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.

6. What kind of lighting pattern is useful to widen a subject?
The diagonal measurement of the sensor.
four times more
Broad lighting
Short lighting

7. What is the inverse square law?
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.
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.
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.
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)

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.
Convex
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
It increases

9. What kind of light will be produced when using a large white umbrella close to a subject?
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).
flat - low contrast light
Magenta
Use and adjustment layer

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

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11. What angle of view does an incident meter read?
Blue & Green
To strike the side of the face away from the camera.
Very wide at about 180 degrees
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.

12. What is the name of the technique used to make a monitor look like what you will see on your print?
Blown highlights
Soft proofing
Reflected light meter
A raster image

13. What two controls adjust the amount of light that reaches the sensor?
Aperture and shutter
Metamerism
lengthen (or slow) the shutter speed
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.

14. In a 2:1 ratio - the shadow side of the subject would meter at X stop(s) less than the highlight side.
One stop less
Selectively increasing print exposure - which will make select parts of the image darker
Broad lighting
The diagonal measurement of the sensor.

15. What is a color profile?
1) Magnification - or the size of the subject; 2) Angle of view
The amount of light reflected back from the subject during exposure.
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 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).

16. The greatest tonal range from black to white is achievable on what kind of paper?
Depth of field
sensor
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.
Glossy paper

17. The relative aperture is equal to the lens focal length divided by what?
aperture diameter
Metamerism
a sensor (or film's) sensitivity to light
Shutter-Priority

18. Most modern lenses are based on this kind of lens.
Shutter speed & aperture
Similar to a normal lens at about 30 degrees
Variations command
Convex

19. According to the rule of thirds - where should the important parts of an image fall?
1920 pixels by 2400 pixels (4.6 million pixels)
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically
International Organization for Standardization
Levels adjustment

20. What is dodging?
1) Use a shorter focal length; 2) Move farther away from the subject
Reflected light meter
The amount of light reflected back from the subject during exposure.
Selectively blocking light during print exposure to lighten the area

21. The area of acceptable sharpness in an image is called what?
Actual Pixel view
Depth of field
Levels adjustment
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).

22. If an image is too cyan - what color adjustment should be made in Photoshop to correct it?
Zoom lens
Add red
Dynamic range
1920 pixels by 2400 pixels (4.6 million pixels)

23. If an image is too blue - what color adjustment should be made in Photoshop to correct it?
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.
Add yellow
The amount of information contained in each pixel
Aperture-priority

24. When doing close-up work - what happens to the depth of field when the subject is closer to the lens?
To send accurate color requirements to a printer.
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.
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.
factor of 2 = 1 stop compensation. (Each time a factor doubles - it's one additional stop)

25. Blue is opposite what color on the color wheel?
Yellow
flat - low contrast light
To send accurate color requirements to a printer.
Black (0)

26. Printers use how many bits per channel of information when printing?
Flat lighting
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.
8 bits
Front lighting

27. Generally - traditional portraits use what lighting ratio?
The entire range of colors that can be seen - reproduced - or captured. Our eyes have a greater gamut than a print or monitor.
3:1 or 4:1
Levels adjustment
Shutter speed & aperture

28. What does a neutral density filter do?
RAID system
Total number of pixels
No change. The EXPOSURE doesn't change or it would also change the background as well. Move the lights to adjust.
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.

29. The smallest unit of digital information is called a what?
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
Bit
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.
Contrast

30. What would you use an ICC profile for?
To send accurate color requirements to a printer.
flat - low contrast light
1 or 2
The sensor's sensitivity to light

31. 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?
5 -000 Kelvin
256
A mirror and pentaprism
Aperture-priority

32. What kind of film can help reduce haze in a landscape?
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
Aperture - focal length - and distance to the subject
Infrared

33. What angle should a polarizing filter be to the sun for best results?
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.
Flat lighting
JPEG
Use and adjustment layer

34. Cyan is composed of equal parts of what two colors?
5000K
Blue & Green
Magenta
Zoom lens

35. 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?
1) Magnification - or the size of the subject; 2) Angle of view
Yellow
A high contrast image
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.

36. A 1:1 lighting ratio produces what lighting result?
Flat lighting
lengthen (or slow) the shutter speed
Blue
Metamerism

37. This type of file format compresses images by discarding pixels; therefore - each time an images is compressed - it loses pixels.
Depth of field
JPEG
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
Aperture - focal length - and distance to the subject

38. This kind of lens has a variable focal length.
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.
The impression human vision gives
Zoom lens
Selecting portions of the image based on color

39. What does "photomacrograph" or "macrophotograph" mean?
Blue
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
sRGB
Two (f/8 > f/11 > f/16)

40. All objects beyond the closest distance in focus will be sharp when this appears within the DOF scale.
To strike the side of the face away from the camera.
Infinity
1) Magnification - or the size of the subject; 2) Angle of view
The number of pixels per unit of length in a image

41. This light modifier can be used to highlight a specific area of the subject.
Snoot
Convex
9
Blue & Green

42. 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?
sRGB
dynamic range (not to be confused with gamut)
four times more
Parallax

43. This stores electronic images captured in a digital camera until they can be transferred to a computer.
Very wide at about 180 degrees
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
Zoom lens
Memory card / flash card / compact flash card

44. What is the general rule of thumb for the measurement of a 'normal' lens?
Black. Subtractive primaries are Magenta - Yellow - Cyan
The diagonal measurement of the sensor.
To strike the side of the face away from the camera.
Blue

45. Name two ways you can increase depth of field (other than changing aperture).
1) Magnification - or the size of the subject; 2) Angle of view
A raster image
1) Use a shorter focal length; 2) Move farther away from the subject
Lasso tool

46. What color is between Magenta and Cyan on the color wheel?
Memory card / flash card / compact flash card
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
Aperture-priority
Blue

47. Generally - how much exposure compensation (in stops) should be used when using a polarizing filter?
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
Snoot
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

48. Why is depth of field greater on a short lens versus a long lens?
Levels adjustment
Flattens out the volume of the subject and minimizes textures
A new layer
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.

49. What is TTL?
Follow focus
1920 pixels by 2400 pixels (4.6 million pixels)
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
Magenta

50. What determines what will be a 'normal' focal length lens on a particular camera?
Flat lighting
Add cyan
Aperture-priority
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)