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 the inverse square law?
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.
Total number of pixels
sRGB
aperture diameter

2. If an image is too blue - what color adjustment should be made in Photoshop to correct it?
Add yellow
aperture diameter
White (255)
Shutter speed & aperture

3. The smallest unit of digital information is called a what?
To strike the side of the face away from the camera.
factor of 2 = 1 stop compensation. (Each time a factor doubles - it's one additional stop)
Bit
It increases

4. Resolution refers to what?
The pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)
The number of pixels per unit of length in a image
Levels adjustment
Aperture

5. In a digital image - the images file sizes corresponds to the total number of what in the image?
Total number of pixels
A high contrast image
3200 Kelvin
dynamic range (not to be confused with gamut)

6. What is an element and where is it found?
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
hue/saturation adjustment layer

7. What do the bars on the left of a histogram represent?
A raster image
Black (0)
Selectively increasing print exposure - which will make select parts of the image darker
Blue & Green

8. What color is between Magenta and Cyan on the color wheel?
Add cyan
The number of pixels per unit of length in a image
Add green
Blue

9. 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.
Parallax
In the middle
The sensor that converts the image from analog to digital (1's and 0's) CCD=charge coupled device; CMOS=complementary metal-oxide semiconductor

10. This viewing option gives you the most accurate version of your image in Photoshop.
Actual Pixel view
Add green
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
Glossy paper

11. The useable exposure range of a sensor - or the range of subject brightness is called what?
Selecting portions of the image based on color
Levels adjustment
dynamic range (not to be confused with gamut)
Fair Use

12. What kind of lighting pattern is useful to widen a subject?
The impression human vision gives
Variations command
Broad lighting
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.

13. Doubling the aperture setting creates how many stops difference in the amount of light reaching the sensor?
One stop
All colors
3:1 or 4:1
Follow focus

14. Panning does what?
Keeps a moving subject sharp while blurring the background
To send accurate color requirements to a printer.
factor of 2 = 1 stop compensation. (Each time a factor doubles - it's one additional stop)
Reciprocal relationship

15. What is the term used to describe a sensor's sensitivity to light?
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.
Subtractive primaries (plus black)
The brightness of all the pixels in an image
ISO

16. Daylight is approximately what color temperature?
A change in illumination
Aperture-Priority
5 -000 Kelvin
Flat lighting

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

18. What is the term used to describe human's change in perception of a color under different light sources?
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.
Metamerism
Infrared
Small light source at an angle to the subject

19. Can you save layers in a JPEG file format?
1) Magnification - or the size of the subject; 2) Angle of view
No
Lower
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.

20. 8 bits per pixel gives you how many colors?
Short lighting
Add magenta
256
More of the background and foreground are sharp.

21. A normal (or standard) focal length lens approximates what?
The impression human vision gives
emphasizes textures
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)
No change. The EXPOSURE doesn't change or it would also change the background as well. Move the lights to adjust.

22. If an image is too magenta - what color adjustment should be made in Photoshop to correct it?
Shutter-priority
Add green
Levels adjustment
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.

23. Most modern lenses are based on this kind of lens.
1 or 2
High Dynamic Range
Convex
Black. Subtractive primaries are Magenta - Yellow - Cyan

24. Whenever another image is copied or moved into a file - Photoshop automatically creates what?
A new layer
Dynamic range
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
Red - Yellow - Green - Cyan - Blue - Magenta

25. Sharpness from near to far is controlled by what?
The sensor that converts the image from analog to digital (1's and 0's) CCD=charge coupled device; CMOS=complementary metal-oxide semiconductor
Aperture
Parallax
Add blue

26. Convex lenses cause light rays to do what?
ISO
Subtractive primaries (plus black)
bend toward each other and converge at the focal point.
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.

27. A histogram shows what in an image?
The brightness of all the pixels in an image
Additive (R - G - B)
No
Glossy paper

28. What are the effects of high side lighting?
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 diaphragm - the mechanism that controls aperture.
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.
Levels adjustment

29. Color systems divide all colors into which three measurements?
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
Hue - Luminance - Saturation
lengthen (or slow) the shutter speed
8 bits

30. What is a color profile?
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically
Shutter speed & aperture
four times more
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).

31. If an image is too cyan - what color adjustment should be made in Photoshop to correct it?
Dynamic range
All colors
Add red
One stop

32. What determines what will be a 'normal' focal length lens on a particular camera?
5 -000 Kelvin
dynamic range (not to be confused with gamut)
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
Levels adjustment

33. What is the name of the technique used to make a monitor look like what you will see on your print?
Soft proofing
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)
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

34. What is a BYTE?
Infrared
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.
Snoot
sensor

35. Going clockwise around the color wheel - starting with RED - what is the progression of colors?
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.
hue/saturation adjustment layer
Creates deep shadows in eye pockets - under nose - and chin.
Red - Yellow - Green - Cyan - Blue - Magenta

36. Digital cameras use what set of primary colors?
Aperture-Priority
Additive (R - G - B)
Creates deep shadows in eye pockets - under nose - and chin.
Levels adjustment

37. This kind of lens has a variable focal length.
Zoom lens
1920 pixels by 2400 pixels (4.6 million pixels)
Incident light meter
Contrast

38. In short lighting - where is the main light placed?
Similar to a normal lens at about 30 degrees
Levels adjustment
To strike the side of the face away from the camera.
Cyan

39. What is the name of the issue that prevents you from seeing exactly what the lens sees when using a rangefinder camera?
Soft proofing
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.
Zoom lens

40. A ring of thin - overlapping leaves located inside the lens is called what?
The diaphragm - the mechanism that controls aperture.
High Dynamic Range
Click with the neutral-point dropper on the selected color
Follow focus

41. The histogram of a properly exposed grey card will show a vertical bar where on the histogram?
In the middle
Subtractive primaries (plus black)
Add blue
Levels adjustment

42. As the aperture becomes smaller - what happens to the depth of field?
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.
White (additive primaries are Red - Green Blue)
Creates deep shadows in eye pockets - under nose - and chin.

43. When mixed in varying proportion - the subtractive primary colors produce what?
All colors
One stop less
Fisheye
Subtractive primaries (plus black)

44. What is a derivative file?
A RAW file that has been altered
1/250th
The amount of light reflected back from the subject during exposure.
The impression human vision gives

45. Generally - how much exposure compensation (in stops) should be used when using a polarizing filter?
1 1/3 stops
The brightness of all the pixels in an image
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.

46. A color image with smooth gradiations requires at least what bit depth?
Half as much light
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
Dynamic range
Blown highlights

47. What kind of lighting pattern is best for average oval faces and round faces you want to slim?
To send accurate color requirements to a printer.
Short lighting.
8 stops
JPEG

48. What does "photomacrograph" or "macrophotograph" mean?
In the middle
four times more
Inkjet black & white printing where color cartridges are replaced with shades of gray - resulting in smooth tones and slight color cast
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."

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

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50. When the additive primaries are mixed together equally - what is created?
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
White (additive primaries are Red - Green Blue)
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.