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Test your basic knowledge |
Certified Professional Photographer
Start Test
Study First
Subject
:
certifications
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 interpolated resolution?
In the middle
1) Use a longer lens; 2) Move closer to the subject
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
The pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)
2. What image adjustment tool uses a histogram display to alter an image?
Contrast
The pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)
No change. The EXPOSURE doesn't change or it would also change the background as well. Move the lights to adjust.
Levels adjustment
3. Resolution refers to what?
The pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.
The number of pixels per unit of length in a image
Memory card / flash card / compact flash card
4. The useable exposure range of a sensor - or the range of subject brightness is called what?
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
Selectively blocking light during print exposure to lighten the area
Butterfly lighting
dynamic range (not to be confused with gamut)
5. The amount of motion blur in an image will increase if you do what?
dynamic range (not to be confused with gamut)
Front lighting
Additive (R - G - B)
lengthen (or slow) the shutter speed
6. What is a thyristor?
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.
Use and adjustment layer
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.
A change in illumination
7. What is the suggested shutter speed to stop action of a child running parallel to the film plan - about 25 feet from the camera?
Hue - Luminance - Saturation
stopped down
White (255)
1/250th
8. Generally - traditional portraits use what lighting ratio?
Subtractive primaries (plus black)
3:1 or 4:1
Follow focus
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.
9. This stores electronic images captured in a digital camera until they can be transferred to a computer.
Memory card / flash card / compact flash card
Fisheye
Selectively blocking light during print exposure to lighten the area
Aperture-Priority
10. A ring of thin - overlapping leaves located inside the lens is called what?
The diaphragm - the mechanism that controls aperture.
One stop less
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.
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
11. What does the term "stop" mean?
Add blue
More of the background and foreground are sharp.
1) Use a shorter focal length; 2) Move farther away from the subject
A change in illumination
12. What is the CCD or CMOS sensor?
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13. What is the name of the technique used to make a monitor look like what you will see on your print?
Soft proofing
Shutter-Priority
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
Small light source at an angle to the subject
14. Blue is opposite what color on the color wheel?
Flattens out the volume of the subject and minimizes textures
Yellow
Add cyan
Lasso tool
15. Tungsten is approximately what color temperature?
One stop less
3200 Kelvin
To send accurate color requirements to a printer.
Creates deep shadows in eye pockets - under nose - and chin.
16. What are luminance and illuminance?
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.
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)
Because you can move in close to the subject
Flat lighting
17. What determines what will be a 'normal' focal length lens on a particular camera?
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
3200 Kelvin
The pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)
It increases
18. What are the effects of top lighting?
One stop less
Broad lighting
Creates deep shadows in eye pockets - under nose - and chin.
Add cyan
19. This viewing option gives you the most accurate version of your image in Photoshop.
Actual Pixel view
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
1 1/3 stops
1/250th
20. Why is depth of field greater on a short lens versus a long lens?
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
Short lighting.
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.
lens-to-subject distance
21. Sharpness from near to far is controlled by what?
Metadata
Actual Pixel view
Bit
Aperture
22. What color is opposite Green on the color wheel?
Broad lighting
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
Incident light meter
Magenta
23. As the aperture is stopped down - what happens to sharpness?
Flattens out the volume of the subject and minimizes textures
Keeps a moving subject sharp while blurring the background
Blown highlights
More of the background and foreground are sharp.
24. When mixed in varying proportion - the subtractive primary colors produce what?
Shutter-priority
All colors
Internet = 72 dpi; Newspaper = 150 dpi; Photographic print = 240-300 dpi; Gloss magazine = 400 dpi
The difference between light and dark.
25. According to the rule of thirds - where should the important parts of an image fall?
Along the lines of an imaginary grid at intersecting points that divide the image into thirds horizontally and vertically
lens-to-subject distance
Blue
Aperture-Priority
26. Photoshop's command for a simple way to start using color balance is what?
Variations command
Shutter-priority
256
Cyan
27. A lens set at f/4 admits how much more/less light than one set at f/2.8?
Convex
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.
Half as much light
Black. Subtractive primaries are Magenta - Yellow - Cyan
28. In a digital image - the images file sizes corresponds to the total number of what in the image?
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.
a sensor (or film's) sensitivity to light
Total number of pixels
29. If an image is too green - what color adjustment should be made in Photoshop to correct it?
Total number of pixels
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.
Add magenta
Click with the neutral-point dropper on the selected color
30. When the subtractive primaries are added together equally - what is created?
(X times Y = exposure) Intensity (aperture) x Time (shutter)
Short lighting.
The diaphragm - the mechanism that controls aperture.
Black. Subtractive primaries are Magenta - Yellow - Cyan
31. This kind of lens has a variable focal length.
In the middle
Add green
Zoom lens
Metadata fields that hold info on photographer - subject - and use.
32. Name 2 ways you can decrease depth of field.
No change. The EXPOSURE doesn't change or it would also change the background as well. Move the lights to adjust.
1) Use a longer lens; 2) Move closer to the subject
A raster image
Lower
33. 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?
Lower
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
The difference between light and dark.
34. What is focal length - technically?
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
Flattens out the volume of the subject and minimizes textures
The amount of information contained in each pixel
The number of pixels per unit of length in a image
35. What color is opposite Red on the color wheel?
Actual Pixel view
Cyan
High Dynamic Range
Black. Subtractive primaries are Magenta - Yellow - Cyan
36. The rule of thirds necessitates that the composition be divided into a grid of now many equal rectangles or squares?
Butterfly lighting
9
5 -000 Kelvin
Subtractive primaries (plus black)
37. Aperture controls what?
The brightness of the light that reaches the sensor
Aperture and shutter
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.
1) Use a shorter focal length; 2) Move farther away from the subject
38. When buying a lens hood - you should get it in what size relative to the lens?
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39. Maximum depth of field at a given aperture is achieved by focusing at what?
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.
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.
Add red
High Dynamic Range
40. 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 high contrast image
Additive (R - G - B)
Black (0)
41. What is the name of the issue that prevents you from seeing exactly what the lens sees when using a rangefinder camera?
High Dynamic Range
Parallax
Incident light meter
More of the background and foreground are sharp.
42. What kind of meter is built in to most cameras?
Hue - Luminance - Saturation
All colors
Metadata fields that hold info on photographer - subject - and use.
Reflected light meter
43. What is TTL?
Half as much light
hue/saturation adjustment layer
1) Use a longer lens; 2) Move closer to the subject
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
44. An image made of pixels is sometimes called what?
factor of 2 = 1 stop compensation. (Each time a factor doubles - it's one additional stop)
Creates deep shadows in eye pockets - under nose - and chin.
Total number of pixels
A raster image
45. A normal (or standard) focal length lens approximates what?
The impression human vision gives
9
Direct sun at 11 -000 Kelvin
Similar to a normal lens at about 30 degrees
46. If you're working with an automatic camera and you set the shutter speed and the camera sets the aperture - what mode are you working in?
Infrared
Zoom lens
The brightness of the light that reaches the sensor
Shutter-priority
47. What are IPTC fields used for?
Very wide at about 180 degrees
four times more
Metadata fields that hold info on photographer - subject - and use.
Similar to a normal lens at about 30 degrees
48. What Photoshop tool allows you to select an area of any size or shape by drawing freehand?
bend toward each other and converge at the focal point.
Lasso tool
It increases
The entire range of colors that can be seen - reproduced - or captured. Our eyes have a greater gamut than a print or monitor.
49. An 8x10 at 240 dpi will have a resolution of what?
Magenta
Aperture
1920 pixels by 2400 pixels (4.6 million pixels)
256
50. What is a flag?
aperture diameter
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
More of the background and foreground are sharp.
1) Use a longer lens; 2) Move closer to the subject