Gadget Savvy: Cameras Quiz

Estimated Completion Time
2 min
Gadget Savvy: Cameras Quiz
Image: Jess Wiberg/iStockphoto

About This Quiz

Photography began as a curiosity but has evolved into one of the world's most popular hobbies. Find out how much you know about cameras by taking our quiz.
Cameras have three basic elements. Two of them are an optical element (the lens) and a mechanical element (the body of the camera). What's the third?
An electrical element
A chemical element
The third element is chemical -- cameras use a chemical process to capture an image on film.
A kinetic element

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What is the job of the camera's lens?
It protects the film from exposure to contaminants.
It filters out everything beyond the visible spectrum of light.
It redirects light so that the camera can create an image.
The lens collects the light reflected off an object and redirects it into the camera to form a real image.

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What is the name for the kind of camera that captures images exactly the same way as a photographer sees the image in real life?
Manual-single-lens-reflex cameras
Manual-single-lens-reflex (SLR) cameras capture images exactly the way a photographer sees them through the camera.
True-image cameras
Double-converging-lens cameras

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In photography, what is a chromatic aberration?
The way colors of light bend in different ways as they pass through the same lens
Chromatic aberration refers to the way different colors of light bend when passing through a lens. Each color represents a different wavelength of light. A chromatic aberration can produce images in which the colors don't line up properly.
A flaw in film that produces pictures with the wrong colors
Mixing purples with oranges and greens

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Where does the term "camera" come from?
It's a corruption of the name Gamera, a Japanese monster that often battled Godzilla.
It comes from the Latin phrase "camera obscura."
We get the word "camera" from the Latin phrase "camera obscura," which means "dark room."
It's a Greek word that means "lifelike painting."

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What is a camera's focal length?
It's how far away the subject of a photo is from the photographer.
It's how large an image can be before it goes out of focus.
It's the distance between the camera's lens and the film inside the camera.
The focal length is the distance between a camera's lens and the film inside the camera when the camera is focused on a subject an infinite distance away. To focus on a distant image, the camera must increase the length between the lens and the film. That's why telephoto lenses are so long.

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What causes the chemical reaction that produces an image on film?
Exposure to light
Photographic film undergoes a chemical reaction once exposed to light. That's why if you accidentally open a camera before you finish a roll of film you'll end up with several ruined photographs.
Photographic developing fluids
A harmless, weak acid

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What is a camera's aperture?
It's a small mirror that flips an image so that it's not reversed.
It's the opening that allows light to pass from the lens to the film.
The aperture is the opening behind the lens that allows light to pass through the camera and hit exposed film. A smaller aperture allows less light to pass through than a larger aperture. Many cameras allow photographers to adjust the aperture's size in order to adjust for different light levels.
It's the button or dial that allows you to change the focus on your camera.

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What determines a camera's length of exposure?
The aperture
The shutter speed
The camera's shutter speed determines how long film is exposed to light. A long shutter speed is best for subjects that aren't moving or for time-lapse photos. Short shutter speeds are necessary for high speed photography.
The film

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What is a pinhole camera?
A tiny camera you can place anywhere
A specialized camera used to capture ultra-high-speed images
A simple box with a hole on one end and a sheet of photographic paper on the other end
A pinhole camera can be as simple as a box with a small hole on one side and photographic paper on the other side. They are easy to make and use, though they require long exposures because only a small amount of light can pass through the hole.

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You Got:
/10
Jess Wiberg/iStockphoto
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