This video covers:-

  • About guide numbers
  • When are guide numbers important
  • How guide numbers are quoted
  • Assumptions made about guide numbers
  • ISO and guide numbers
  • Zoom heads on flashguns and guide numbers
  • How we can use the guide number
  • Other formulas
  • Problem solving
  • Why ISO is so key to correct flash exposures
  • Flash units and their guide numbers

Video length: 11min 43sec