Skip to main content
speed

speed

1 8.5
How much light a camera lens lets in
  • noun
  • /spiːd/
  • Specialized
: luminosidad
  • OK, now we're talking about how shutter speed affects your image.
  • lens speed

Examples

  • You will appreciate the speed because of the low shutter speeds with this method of photography.

    Academic text (1993)
  • Limited access to a high-speed Internet connection makes use of certain kinds of websites frustratingly slow.

    Academic text (2015)
  • A mill operator reported that a high-speed, high-production sawmill costs $30 to $50.

    Academic text (2017)
  • I use manual exposures with shutter speeds set to 1/250 to 1/45 of a second.

    Academic text (1999)
  • The photographer adjusted the speed of the camera's shutter to capture the action clearly.

  • To achieve a well-exposed image, you must understand the relationship between aperture and speed.

  • An increase in the shutter speed can help prevent blurriness when photographing fast-moving subjects.

Synonyms

f number
vsspeed
  • Specialized
1 7.5

A value that shows how wide a camera lens opens to let light in

shows light-gathering ability of the lens
focal ratio
vsspeed
  • Specialized
1 7.8

A number showing how bright an image is, found by dividing focal length by lens diameter

applies to camera lens light-gathering rather than all optics
stop number
vsspeed
  • Specialized
1 8.4

A number that shows how wide a camera lens opens to let light in

emphasizes lens light-gathering rather than exposure numbering

Idioms

full speed ahead
  • Informal
12 3.7

Go forward very quickly with strong effort

Compounds

160 3.2

Able to work or move much faster than normal

65 1.0

The fastest speed cars are allowed to drive on a road

speed of light
  • Specialized
50 3.8

A constant speed at which light travels in empty space, about 300,000 kilometres per second

23 3.7

How fast a vehicle or person can move

16 2.5

A raised strip across a road that makes cars slow down

light speed
  • Specialized
13 5.0

The speed that light travels in empty space

speed bump
  • Informal
10 3.2

A problem that slows progress in a project

Very fast movement that happens almost instantly

super-speed
  • Literature
7 8.0

Ability to move much faster than a normal person

6 3.8

A place on a road where police hide to catch drivers going too fast

A sport where people race on ice skates around an oval track to get the fastest time

A phrase used to say something happens very fast

speed freak
  • Offensive
4 9.6

A person who often uses drugs that make you more active, like amphetamines

Reading text much faster than usual while still understanding it

4 3.0

A person who races fast on ice around an oval track

speed demon
  • Informal
3 6.9

A person who drives very fast, often breaking speed limits

relative speed
  • Specialized
1 4.1

How fast one object moves compared to another, for example two cars

A device that shows how fast a car or other vehicle is moving

1 7.6

A baseball throw slower than a fastball that fools the batter

1 4.2

A police officer who patrols roads to catch drivers going too fast

high-speed steel
  • Specialized
1 5.3

A very hard metal used for cutting tools that stays hard when hot

speed merchant
  • Informal
1 7.0

A person who drives very fast, often in cars

execution speed
  • Specialized
1 4.9

How fast a computer or processor runs instructions

1 3.2

An ice skate with a long straight blade for fast racing on ice

speed frame
  • Specialized
8.5

A machine that pulls and slightly twists fibers to make a loose rope for spinning

How Fast

portrait lens
  • Specialized
1 5.4
speed
  • Specialized
1 8.5

Surface Forms

speed singular
speeds plural

Etymology

Speed in photography uses the idea of 'quickness' — photographers call a lens 'fast' when it lets the camera take pictures with a very short exposure. Because a 'fast' lens lets you work more quickly or in low light, speed here means how well a lens lets you shoot faster.