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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 angle of view does an incident meter read?
emphasizes textures
A high contrast image
Very wide at about 180 degrees
A simple lens with two curved sides or one curved and one flat side; found in a compound lens.
2. Cyan is composed of equal parts of what two colors?
1) Use a shorter focal length; 2) Move farther away from the subject
Add cyan
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
Blue & Green
3. Contrast measures what in a print?
RAID system
The difference between light and dark.
Selectively blocking light during print exposure to lighten the area
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.
4. The amount of motion blur in an image will increase if you do what?
Reciprocal relationship
1) Use a shorter focal length; 2) Move farther away from the subject
More of the background and foreground are sharp.
lengthen (or slow) the shutter speed
5. The term "ISO speed" is used to describe what?
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6. A general purpose lens will provide an f-stop range of up to how many?
Actual Pixel view
8 stops
Shutter-Priority
The amount of information contained in each pixel
7. Going clockwise around the color wheel - starting with RED - what is the progression of colors?
Glossy paper
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.
The amount of light reflected back from the subject during exposure.
Red - Yellow - Green - Cyan - Blue - Magenta
8. This stores electronic images captured in a digital camera until they can be transferred to a computer.
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 change in illumination
More of the background and foreground are sharp.
Memory card / flash card / compact flash card
9. Bit depth refers to what?
The amount of information contained in each pixel
Small light source at an angle to the subject
flat - low contrast light
Magenta
10. Tungsten is approximately what color temperature?
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
3200 Kelvin
Red - Yellow - Green - Cyan - Blue - Magenta
Blue & Green
11. If you must move to reduce the amount of flash reaching your subject - how far do you move?
1) Magnification - or the size of the subject; 2) Angle of view
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 raster image
Metadata fields that hold info on photographer - subject - and use.
12. What light source has the highest color temperature?
It increases
Direct sun at 11 -000 Kelvin
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.
Two (f/8 > f/11 > f/16)
13. What is the CCD or CMOS sensor?
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14. A lens set at f/4 admits how much more/less light than one set at f/2.8?
Half as much light
Maybe as little as 0.5 degrees or 1 degree
The brightness of all the pixels in an image
Lasso tool
15. Name two ways you can increase depth of field (other than changing aperture).
Short lighting.
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.
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.
1) Use a shorter focal length; 2) Move farther away from the subject
16. Panning does what?
Butterfly lighting
Red - Yellow - Green - Cyan - Blue - Magenta
24 bits per pixel (8 per color) - which gives 16 -777 -216 colors
Keeps a moving subject sharp while blurring the background
17. What are the three main factors that affect depth of field?
Aperture - focal length - and distance to the subject
Shutter-priority
Subtractive primaries (plus black)
Creates deep shadows in eye pockets - under nose - and chin.
18. 8 bits per pixel gives you how many colors?
The diaphragm - the mechanism that controls aperture.
four times more
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
256
19. What color is between Magenta and Cyan on the color wheel?
lens-to-subject distance
Selectively blocking light during print exposure to lighten the area
Fisheye
Blue
20. All objects beyond the closest distance in focus will be sharp when this appears within the DOF scale.
Parallax
Aperture-Priority
Infinity
Butterfly lighting
21. What two controls adjust the amount of light that reaches the sensor?
Lower
In the middle
a sensor (or film's) sensitivity to light
Aperture and shutter
22. Photoshop's command for a simple way to start using color balance is what?
Short lighting.
One stop less
Variations command
Convex
23. A histogram shows what in an image?
Internet = 72 dpi; Newspaper = 150 dpi; Photographic print = 240-300 dpi; Gloss magazine = 400 dpi
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.
The brightness of all the pixels in an image
Keeps a moving subject sharp while blurring the background
24. What is TTL?
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
Blue
Small light source at an angle to the subject
The brightness of all the pixels in an image
25. This type of backup system is fault-tolerant because it creates redundant data.
a sensor (or film's) sensitivity to light
RAID system
Internet = 72 dpi; Newspaper = 150 dpi; Photographic print = 240-300 dpi; Gloss magazine = 400 dpi
All colors
26. What is the general rule of thumb for the measurement of a 'normal' lens?
The diagonal measurement of the sensor.
Flattens out the volume of the subject and minimizes textures
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.
Front lighting
27. What determines what will be a 'normal' focal length lens on a particular camera?
1) Use a shorter focal length; 2) Move farther away from the subject
Two (f/8 > f/11 > f/16)
Add cyan
Sensor size - the larger the sensor size - the longer the focal length of a normal lens. (Corresponds to a diagonal line across the frame)
28. How can you change the brightness of the background when using flash?
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.
To send accurate color requirements to a printer.
Black. Subtractive primaries are Magenta - Yellow - Cyan
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.
29. What do the bars on the right of a histogram represent?
White (255)
Short lighting.
Add blue
1) Use a longer lens; 2) Move closer to the subject
30. What kind of light will be produced when using a large white umbrella close to a subject?
flat - low contrast light
Memory card / flash card / compact flash card
The sensor's sensitivity to light
The amount of information contained in each pixel
31. If an image is too magenta - what color adjustment should be made in Photoshop to correct it?
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.
5 -000 Kelvin
Add green
The impression human vision gives
32. Blue is opposite what color on the color wheel?
Selectively blocking light during print exposure to lighten the area
Aperture - focal length - and distance to the subject
5 -000 Kelvin
Yellow
33. What Photoshop tool allows you to select an area of any size or shape by drawing freehand?
Shutter-priority
A high contrast image
Inkjet black & white printing where color cartridges are replaced with shades of gray - resulting in smooth tones and slight color cast
Lasso tool
34. In a 2:1 ratio - the shadow side of the subject would meter at X stop(s) less than the highlight side.
Black. Subtractive primaries are Magenta - Yellow - Cyan
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.
One stop less
Add cyan
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?
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
Aperture - focal length - and distance to the subject
Yellow
Blown highlights
36. An image made of pixels is sometimes called what?
The diagonal measurement of the sensor.
Memory card / flash card / compact flash card
A raster image
1) Use a longer lens; 2) Move closer to the subject
37. What is interpolated resolution?
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.
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.
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
Selectively blocking light during print exposure to lighten the area
38. What is a derivative file?
A RAW file that has been altered
Lower
Add blue
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.
39. What do TTL systems react to?
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.
The amount of light reflected back from the subject during exposure.
Selecting portions of the image based on color
A new layer
40. What is the optical resolution on a scanner defined as?
A mirror and pentaprism
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.
It increases
The pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)
41. Copyright law has certain built-in exceptions that allow for special situations in using copyrighted material. They are called what?
Actual Pixel view
Aperture
Fair Use
Metadata
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?
four times more
It increases
Absorbs equal quantities of all wavelengths of light. It allows you to use wider apertures or slower shutter speeds without changing color balance.
Inkjet black & white printing where color cartridges are replaced with shades of gray - resulting in smooth tones and slight color cast
43. When doing close-up work - what happens to the depth of field when the subject is closer to the lens?
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.
Follow focus
Black. Subtractive primaries are Magenta - Yellow - Cyan
Infrared
44. What does the term "stop" mean?
Shutter-Priority
1920 pixels by 2400 pixels (4.6 million pixels)
A RAW file that has been altered
A change in illumination
45. What is a flag?
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)
5000K
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
46. The term to describe the combination of aperture and shutter speed that can be changed by moving them in opposite directions.
Lower
Reciprocal relationship
Additive (R - G - B)
1 1/3 stops
47. Why does a short lens create wide-angle distortion?
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
lens-to-subject distance
Because you can move in close to the subject
To send accurate color requirements to a printer.
48. The quantity of light that reaches your sensor is controlled by 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
8 stops
Shutter speed & aperture
It increases
49. When the additive primaries are mixed together equally - what is created?
White (additive primaries are Red - Green Blue)
Aperture-Priority
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.
Aperture-priority
50. What is the term used to describe human's change in perception of a color under different light sources?
Cyan
Metamerism
Actual Pixel view
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.