Lighting types

• What are the 2 categories that light can be split into?

  • Natural (sunlight, moonlight, firelight etc)
  • Artificial (man-made light)
• What does 'ambient lighting' refer to?

  • Lights that are on location that weren't brought by the crew
• What does 'practical lighting' refer to?

  • Any light source that can be seen in the frame, whether it's ambient or been placed there.
• What does 'motivated lighting' mean?

  • There's a logical or reasonable justification for the light in the scene
• What does 'lux' or 'footcandles' refer to?

  • It's the amount of the light that reaches a subject
• What does 'reflective light' mean?

  • It's the amount of light that reaches the camera
• What does the amount of light depend on?

  • Strength of the source
  • Its position in relation to the subject
  • As soon as light leaves the source it begins to lose intensity (light falloff)
• How can we predict how much light is lost?

  • Inverse square law equation
• What's the equation for inverse square law in this context?

  • intensity of light= 1/distance squared
  • Whenever you double the distance away from the source, the light is reduced by 75%
• What is colour temperature measured in?

  • Kelvins
• How can you imitate daylight using light sources?

  • Daylight has a value of 5600 Kelvin
  • You can use artificial light sources with the same temperature