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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?
Contrast
Maybe as little as 0.5 degrees or 1 degree
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
The impression human vision gives
2. What is the usable exposure range - or range of subject brightness called?
Dynamic range
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.
1920 pixels by 2400 pixels (4.6 million pixels)
The brightness of the light that reaches the sensor
3. What do the bars on the left of a histogram represent?
Black (0)
The difference between light and dark.
Selectively blocking light during print exposure to lighten the area
Butterfly lighting
4. An image made of pixels is sometimes called what?
A raster image
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
Snoot
A new layer
5. A lens with a very wide angle of view and produces barrel distortion is what kind of lens?
(X times Y = exposure) Intensity (aperture) x Time (shutter)
factor of 2 = 1 stop compensation. (Each time a factor doubles - it's one additional stop)
Fisheye
ISO
6. What is the term used to describe human's change in perception of a color under different light sources?
Metamerism
256
Infrared
Aperture-Priority
7. Convex lenses cause light rays to do what?
To send accurate color requirements to a printer.
The pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)
bend toward each other and converge at the focal point.
The diagonal measurement of the sensor.
8. The rule of thirds necessitates that the composition be divided into a grid of now many equal rectangles or squares?
To send accurate color requirements to a printer.
9
The diaphragm - the mechanism that controls aperture.
Incident light meter
9. This type of backup system is fault-tolerant because it creates redundant data.
In the middle
More of the background and foreground are sharp.
RAID system
Front lighting
10. Stopping a lens down from f/8 to f/16 represents a X stop difference.
Two (f/8 > f/11 > f/16)
5 -000 Kelvin
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.
Memory card / flash card / compact flash card
11. Generally - traditional portraits use what lighting ratio?
Short lighting.
Direct sun at 11 -000 Kelvin
3:1 or 4:1
9
12. Maximum depth of field at a given aperture is achieved by focusing at what?
The number of pixels per unit of length in a image
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
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.
sRGB
13. To minimize facial wrinkles - this type of lighting is best.
8 bits
One stop less
Front lighting
More of the background and foreground are sharp.
14. What is the inverse square law?
It increases
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.
Fisheye
Parallax
15. When the additive primaries are mixed together equally - what is created?
The pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)
White (additive primaries are Red - Green Blue)
dynamic range (not to be confused with gamut)
Black (0)
16. Why does a short lens create wide-angle distortion?
Because you can move in close to the subject
In the middle
White (255)
(X times Y = exposure) Intensity (aperture) x Time (shutter)
17. Whenever another image is copied or moved into a file - Photoshop automatically creates what?
Front lighting
Memory card / flash card / compact flash card
lengthen (or slow) the shutter speed
A new layer
18. Printers use how many bits per channel of information when printing?
To send accurate color requirements to a printer.
Levels adjustment
8 bits
Additive (R - G - B)
19. 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
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
More of the background and foreground are sharp.
All colors
20. What is focal length - technically?
The distance between the lens rear nodal point and the focal plane when the lens is focused at infinity.
Yellow
Lasso tool
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.
21. An 8x10 at 240 dpi will have a resolution of what?
1920 pixels by 2400 pixels (4.6 million pixels)
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)
a sensor (or film's) sensitivity to light
Direct sun at 11 -000 Kelvin
22. What would you use an ICC profile for?
To send accurate color requirements to a printer.
Add yellow
Infrared
On a scanner; it guesses what the pixels look like in between the ones the scanner can actually measure.
23. Using this kind of automatic exposure setting on the camera - you set the shutter speed and the camera sets the aperture.
Shutter-Priority
The amount of information contained in each pixel
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.
Yellow
24. In a 2:1 ratio - the shadow side of the subject would meter at X stop(s) less than the highlight side.
Selectively increasing print exposure - which will make select parts of the image darker
The entire range of colors that can be seen - reproduced - or captured. Our eyes have a greater gamut than a print or monitor.
One stop less
Through the Lens. A camera that can automatically control flash exposure using sensors inside the camera.
25. 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?
Use negative exposure compensation (underexpose). The meter will attempt to make the dark scene 18% grey - underexpose to bring it back to dark.
One stop less
Aperture - focal length - and distance to the subject
5000K
26. What is the term used to describe a sensor's sensitivity to light?
ISO
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.
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.
Lasso tool
27. What do TTL systems react to?
Dynamic range
5 -000 Kelvin
JPEG
The amount of light reflected back from the subject during exposure.
28. Can you save layers in a JPEG file format?
The pixels per inch a scanner is capable of capturing often described as two numbers (i.e. 1200x2400)
Aperture-priority
Inkjet black & white printing where color cartridges are replaced with shades of gray - resulting in smooth tones and slight color cast
No
29. The amount of motion blur in an image will increase if you do what?
Total number of pixels
lengthen (or slow) the shutter speed
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.
RAID system
30. What angle of view does a reflected light meter read?
Memory card / flash card / compact flash card
Soft proofing
A mirror and pentaprism
Similar to a normal lens at about 30 degrees
31. What are IPTC fields used for?
Metadata fields that hold info on photographer - subject - and use.
Cyan
9
Follow focus
32. The image transmitted by the lens is recorded by the what?
White (additive primaries are Red - Green Blue)
sensor
Follow focus
Close-ups that are life-size or larger. Images through microscopes are "photomicrographs."
33. The greatest tonal range from black to white is achievable on what kind of paper?
aperture diameter
Bit
A high contrast image
Glossy paper
34. What angle should a polarizing filter be to the sun for best results?
bend toward each other and converge at the focal point.
Additive (R - G - B)
flat - low contrast light
90 degrees. If using to eliminate reflections - it should be used at 35 degrees.
35. How is brightness and contrast best controlled in Photoshop?
Bit
Levels adjustment
sRGB
Memory card / flash card / compact flash card
36. Cyan is composed of equal parts of what two colors?
Blue & Green
The brightness of the light that reaches the sensor
Levels adjustment
1920 pixels by 2400 pixels (4.6 million pixels)
37. What is the name of the technique used to make a monitor look like what you will see on your print?
Short lighting
Soft proofing
Glossy paper
(X times Y = exposure) Intensity (aperture) x Time (shutter)
38. Name two ways you can increase depth of field (other than changing aperture).
1) Use a shorter focal length; 2) Move farther away from the subject
Add cyan
The number of pixels per unit of length in a image
A change in illumination
39. 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?
1) Use a shorter focal length; 2) Move farther away from the subject
Yellow
Parallax
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.
40. The area of acceptable sharpness in an image is called what?
Depth of field
Zoom lens
Because you can move in close to the subject
(X times Y = exposure) Intensity (aperture) x Time (shutter)
41. What do the bars on the right of a histogram represent?
Follow focus
White (255)
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.
42. What are luminance and illuminance?
Flat lighting
ISO
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)
Selectively blocking light during print exposure to lighten the area
43. To emphasize texture in a portrait - what kind of light source is recommended?
Lasso tool
Actual Pixel view
5 -000 Kelvin
Small light source at an angle to the subject
44. As the aperture becomes smaller - what happens to the depth of field?
Black (0)
The amount of light reflected back from the subject during exposure.
It increases
The sensor that converts the image from analog to digital (1's and 0's) CCD=charge coupled device; CMOS=complementary metal-oxide semiconductor
45. A histogram with peaks on either end of the histogram and a deep valley in between represents what?
A high contrast image
JPEG
The brightness of the light that reaches the sensor
sRGB
46. 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.
sensor
No change. The EXPOSURE doesn't change or it would also change the background as well. Move the lights to adjust.
High Dynamic Range
47. What is a flag?
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 mirror and pentaprism
Metadata fields that hold info on photographer - subject - and use.
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
48. What are the effects of top lighting?
lengthen (or slow) the shutter speed
Flat lighting
Yellow
Creates deep shadows in eye pockets - under nose - and chin.
49. What kind of light will be produced when using a large white umbrella close to a subject?
Additive (R - G - B)
The brightness of all the pixels in an image
(X times Y = exposure) Intensity (aperture) x Time (shutter)
flat - low contrast light
50. When buying a lens hood - you should get it in what size relative to the lens?
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