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. If an image is too magenta - what color adjustment should be made in Photoshop to correct it?
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically
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.
Shutter-priority
Add green

2. The useable exposure range of a sensor - or the range of subject brightness is called what?
dynamic range (not to be confused with gamut)
Two (f/8 > f/11 > f/16)
The amount of information contained in each pixel
Snoot

3. An 8x10 at 240 dpi will have a resolution of what?
1920 pixels by 2400 pixels (4.6 million pixels)
The diaphragm - the mechanism that controls aperture.
The impression human vision gives
In the middle

4. What do the bars on the left of a histogram represent?
Depth of field
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.
Flat lighting
Black (0)

5. To emphasize texture in a portrait - what kind of light source is recommended?
Total number of pixels
Dynamic range
The diagonal measurement of the sensor.
Small light source at an angle to the subject

6. This viewing option gives you the most accurate version of your image in Photoshop.
Add green
Lower
Subtractive primaries (plus black)
Actual Pixel view

7. What is the CCD or CMOS sensor?

8. What kind of lighting pattern places the key light directly in front of and higher than the face?
The pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)
Incident light meter
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
Butterfly lighting

9. The histogram of a properly exposed grey card will show a vertical bar where on the histogram?
Infinity
In the middle
1 1/3 stops
3200 Kelvin

10. When doing close-up work - what happens to the depth of field when the subject is closer to the lens?
No
1 1/3 stops
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.
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.

11. The quantity of light that reaches your sensor is controlled by what?
aperture diameter
High Dynamic Range
Shutter speed & aperture
9

12. What is focal length - technically?
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
The sensor's sensitivity to light
Incident light meter

13. Why does a short lens create wide-angle distortion?
Dynamic range
aperture diameter
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

14. A lens with a very wide angle of view and produces barrel distortion is what kind of lens?
The diaphragm - the mechanism that controls aperture.
Follow focus
Fisheye
Dynamic range

15. If an image is too blue - what color adjustment should be made in Photoshop to correct it?
Follow focus
Add yellow
Metadata
Infinity

16. What kind of lighting pattern is useful to widen a subject?
stopped down
Broad lighting
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.

17. The relative aperture is equal to the lens focal length divided by what?
Dynamic range
To send accurate color requirements to a printer.
aperture diameter
dynamic range (not to be confused with gamut)

18. In a digital image - the images file sizes corresponds to the total number of what in the image?
A change in illumination
Total number of pixels
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.
3200 Kelvin

19. Using this kind of automatic exposure setting on the camera - you set the aperture and the camera sets the shutter speed.
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.
Lower
Aperture-Priority
A change in illumination

20. An image made of pixels is sometimes called what?
A change in illumination
A raster image
1) Magnification - or the size of the subject; 2) Angle of view
Black (0)

21. Most lenses are sharpest closed down to how many stops from the widest?
1 or 2
a sensor (or film's) sensitivity to light
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.
The amount of information contained in each pixel

22. When the size of the aperture is decreased - it is said to be what?
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
Flattens out the volume of the subject and minimizes textures
stopped down
a sensor (or film's) sensitivity to light

23. What would you use an ICC profile for?
No change. The EXPOSURE doesn't change or it would also change the background as well. Move the lights to adjust.
Reciprocal relationship
The entire range of colors that can be seen - reproduced - or captured. Our eyes have a greater gamut than a print or monitor.
To send accurate color requirements to a printer.

24. If an image is too green - what color adjustment should be made in Photoshop to correct it?
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
Add magenta
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.

25. What does "photomacrograph" or "macrophotograph" mean?
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.
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
sRGB
Direct sun at 11 -000 Kelvin

26. In a curves adjustment layer - what does the shape of the curve indicate?
Contrast
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
A high contrast image
Aperture

27. 8 bits per pixel gives you how many colors?
256
The sensor's sensitivity to light
1 or 2
5 -000 Kelvin

28. The area of acceptable sharpness in an image is called what?
Levels adjustment
Fisheye
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.
Depth of field

29. What is burning?
Levels adjustment
Selectively increasing print exposure - which will make select parts of the image darker
Hue - Luminance - Saturation
Infrared

30. Cyan is composed of equal parts of what two colors?
Blue & Green
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).
Hue - Luminance - Saturation
The brightness of the light that reaches the sensor

31. Stopping a lens down from f/8 to f/16 represents a X stop difference.
Add green
lens-to-subject distance
Two (f/8 > f/11 > f/16)
Small light source at an angle to the subject

32. How does 'unsharp mask' work?
ISO
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
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.
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.

33. How can you change the brightness of the background when using flash?
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 pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)
Depth of field
A high contrast image

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

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?
Yellow
Depth of field
9
sRGB

36. In short lighting - where is the main light placed?
Black. Subtractive primaries are Magenta - Yellow - Cyan
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).
To strike the side of the face away from the camera.
Metadata fields that hold info on photographer - subject - and use.

37. Doubling the aperture setting creates how many stops difference in the amount of light reaching the sensor?
stopped down
Blue
One stop
Variations command

38. What is the best color profile for web images?
JPEG
Follow focus
Parallax
sRGB

39. 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?
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.
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
(X times Y = exposure) Intensity (aperture) x Time (shutter)
Metamerism

40. What does side lighting emphasize?
emphasizes textures
JPEG
International Organization for Standardization
flat - low contrast light

41. Tungsten is approximately what color temperature?
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.
In the middle
White (255)
3200 Kelvin

42. What is an element and where is it found?
Click with the neutral-point dropper on the selected color
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.
1) Use a shorter focal length; 2) Move farther away from the subject
Fair Use

43. What is the inverse square law?
four times more
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.
Depth of field
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.

44. Focal length controls what?
1) Magnification - or the size of the subject; 2) Angle of view
Blue
Metadata
The impression human vision gives

45. What are the effects of top lighting?
Additive (R - G - B)
5000K
Creates deep shadows in eye pockets - under nose - and chin.
More of the background and foreground are sharp.

46. This technique allows you to keep a subject that is moving toward you well focused.
Selectively blocking light during print exposure to lighten the area
Follow focus
Add red
Aperture - focal length - and distance to the subject

47. What do the bars on the right of a histogram represent?
No change. The EXPOSURE doesn't change or it would also change the background as well. Move the lights to adjust.
Infrared
White (255)
Click with the neutral-point dropper on the selected color

48. Bit depth refers to what?
Reflected light meter
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.
Use positive exposure compensation (overexposure). A reflected meter reading will attempt to make the scene 18% gray - employ overexposure to adjust.
The amount of information contained in each pixel

49. The term to describe the combination of aperture and shutter speed that can be changed by moving them in opposite directions.
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.
To strike the side of the face away from the camera.
Reciprocal relationship
Add blue

50. What angle of view does a spot meter read?
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
Inkjet black & white printing where color cartridges are replaced with shades of gray - resulting in smooth tones and slight color cast
Levels adjustment
Maybe as little as 0.5 degrees or 1 degree