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Light
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Light

Light being split into its component colours by the use of a prism

How light interacts with an object changes how it is perceived

  • Red
  • Orange
  • Yellow
  • Green
  • Blue
  • Indigo
  • Violet

White light is a spectrum that is made up of multiple component colours:

Light is the part of the electromagnetic spectrum that our eyes are able to perceive.

What is light?

Light always travels in a straight line so the image will appear inverted if viewed directly through a lens.

Light travels at approximately 300,000,000 m/s or 186,000 miles/sec

How light travels

When the shutter is closed

How light interacts with a SLR

Light enters the lens. Hits the mirror reflecting the light into a prism, wich is then reflected into the eye. With the image corrected to appear the right way up.

When the shutter is open

How light interacts with a SLR

Light passes through the lens and straight onto the film/sensor plane. This image will be upside down and is corrected in a DSLR.

click each type to find out more

  • Diffusion
  • Absorption
  • Refraction
  • Reflection

Some of the different types of way light can interact with an object are:

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