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. A lens set at f/4 admits how much more/less light than one set at f/2.8?
Small light source at an angle to the subject
Half as much light
Total number of pixels
Add blue

2. If an image is too red - what color adjustment should be made in Photoshop to correct it?
(X times Y = exposure) Intensity (aperture) x Time (shutter)
Add cyan
1) Magnification - or the size of the subject; 2) Angle of view
Incident light meter

3. The rule of thirds necessitates that the composition be divided into a grid of now many equal rectangles or squares?
Fisheye
1 1/3 stops
Butterfly lighting
9

4. Name two ways you can increase depth of field (other than changing aperture).
Bit
1) Use a shorter focal length; 2) Move farther away from the subject
RAID system
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."

5. An 8x10 at 240 dpi will have a resolution of what?
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
1920 pixels by 2400 pixels (4.6 million pixels)
(X times Y = exposure) Intensity (aperture) x Time (shutter)
Shutter speed & aperture

6. 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?
One stop less
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)
Selecting portions of the image based on color

7. If an image is too cyan - what color adjustment should be made in Photoshop to correct it?
Aperture - focal length - and distance to the subject
Add red
9
Broad lighting

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.
A change in illumination
Add yellow
Curves adjustment; Levels adjustment; Brighteness/Contrast adjustment

9. What does a neutral density filter do?
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.
To send accurate color requirements to a printer.
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.
White (additive primaries are Red - Green Blue)

10. A color image with smooth gradiations requires at least what bit depth?
The diagonal measurement of the sensor.
lens-to-subject distance
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
Fair Use

11. What angle should a polarizing filter be to the sun for best results?
Very wide at about 180 degrees
Flat lighting
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.
Lasso tool

12. 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?
Follow focus
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)
Use and adjustment layer
Yellow

13. A histogram shows what in an image?
The brightness of all the pixels in an image
Follow focus
Cyan
Shutter-Priority

14. Contrast measures what in a print?
All colors
Butterfly lighting
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
The difference between light and dark.

15. Generally - how much exposure compensation (in stops) should be used when using a polarizing filter?
Memory card / flash card / compact flash card
More of the background and foreground are sharp.
1 1/3 stops
RAID system

16. Cyan is composed of equal parts of what two colors?
Soft proofing
Blue & Green
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.
The brightness of the light that reaches the sensor

17. What is the term used to describe data contained in a digital image?
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
All colors
Maybe as little as 0.5 degrees or 1 degree
Metadata

18. How does 'unsharp mask' work?
White (additive primaries are Red - Green Blue)
One stop less
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.
Variations command

19. What would you use an ICC profile for?
Metadata
To send accurate color requirements to a printer.
1920 pixels by 2400 pixels (4.6 million pixels)
The number of pixels per unit of length in a image

20. Maximum depth of field at a given aperture is achieved by focusing at what?
hue/saturation adjustment layer
Blue
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.
High Dynamic Range

21. A normal (or standard) focal length lens approximates what?
bend toward each other and converge at the focal point.
No change. The EXPOSURE doesn't change or it would also change the background as well. Move the lights to adjust.
The impression human vision gives
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. 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?
Click with the neutral-point dropper on the selected color
Blue
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
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.

23. In a curves adjustment layer - what does the shape of the curve indicate?
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
3:1 or 4:1
Contrast
Magenta

24. A 1:1 lighting ratio produces what lighting result?
Follow focus
Flat lighting
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
The diaphragm - the mechanism that controls aperture.

25. What are the three main factors that affect depth of field?
1 1/3 stops
A RAW file that has been altered
flat - low contrast light
Aperture - focal length - and distance to the subject

26. What are luminance and illuminance?
Black (0)
Fisheye
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)
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically

27. All objects beyond the closest distance in focus will be sharp when this appears within the DOF scale.
Aperture and shutter
Soft proofing
flat - low contrast light
Infinity

28. The quantity of light that reaches your sensor is controlled by what?
Shutter speed & aperture
Reciprocal relationship
Aperture-priority
One stop less

29. What color is opposite Green on the color wheel?
Infinity
Magenta
All colors
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.

30. If an image is too magenta - what color adjustment should be made in Photoshop to correct it?
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.
aperture diameter
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.
Add green

31. What are the effects of top lighting?
Creates deep shadows in eye pockets - under nose - and chin.
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
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.
Follow focus

32. Convex lenses cause light rays to do what?
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
Aperture
bend toward each other and converge at the focal point.
Internet = 72 dpi; Newspaper = 150 dpi; Photographic print = 240-300 dpi; Gloss magazine = 400 dpi

33. What is the effect of front lighting?
Metadata
Add yellow
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.
Flattens out the volume of the subject and minimizes textures

34. 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).
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
Similar to a normal lens at about 30 degrees
lens-to-subject distance

35. How is brightness and contrast best controlled in Photoshop?
Levels adjustment
All colors
Reflected light meter
The number of pixels per unit of length in a image

36. What are IPTC fields used for?
Depth of field
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.
High Dynamic Range
Metadata fields that hold info on photographer - subject - and use.

37. What color is between Magenta and Cyan on the color wheel?
Selecting portions of the image based on color
The difference between light and dark.
JPEG
Blue

38. What angle of view does a spot meter read?
Maybe as little as 0.5 degrees or 1 degree
High Dynamic Range
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.
aperture diameter

39. Doubling the aperture setting creates how many stops difference in the amount of light reaching the sensor?
The amount of light reflected back from the subject during exposure.
Blue & Green
lens-to-subject distance
One stop

40. Digital cameras use what set of primary colors?
Additive (R - G - B)
Aperture and shutter
Short lighting
A high contrast image

41. What is a thyristor?
Bit
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.
The number of pixels per unit of length in a image
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.

42. The histogram of a properly exposed grey card will show a vertical bar where on the histogram?
In the middle
Aperture-Priority
The amount of light reflected back from the subject during exposure.
The entire range of colors that can be seen - reproduced - or captured. Our eyes have a greater gamut than a print or monitor.

43. Photoshop's command for a simple way to start using color balance is what?
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.
Variations command
Actual Pixel view
Yellow

44. If an image is too green - what color adjustment should be made in Photoshop to correct it?
Add magenta
flat - low contrast light
Selectively increasing print exposure - which will make select parts of the image darker
Blown highlights

45. What image adjustment tool uses a histogram display to alter an image?
Shutter-Priority
Front lighting
Levels adjustment
More of the background and foreground are sharp.

46. To emphasize texture in a portrait - what kind of light source is recommended?
Small light source at an angle to the subject
Convex
Fair Use
A raster image

47. Color systems divide all colors into which three measurements?
Shutter-Priority
Hue - Luminance - Saturation
No
Selecting portions of the image based on color

48. 8 bits per pixel gives you how many colors?
256
Follow focus
Two (f/8 > f/11 > f/16)
Glossy paper

49. This kind of lens has a variable focal length.
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.
Zoom lens
To strike the side of the face away from the camera.
lengthen (or slow) the shutter speed

50. 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?
Metadata
emphasizes textures
four times more
Creates deep shadows in eye pockets - under nose - and chin.