Flash Calculation Results

Required Flash Power

1/4 power

Good exposure range

Exposure Values

f/8

ISO 100

GN 58

Flash Photography Guide

Power Levels
Power Usage
1/1 Maximum power, distant subjects
1/4 Group photos, medium distance
1/16 - 1/128 Close-up, macro work
Flash Tips
  • Use lower power for faster recycle times
  • Consider diffusion for softer light
  • Balance with ambient light when possible
  • Account for light modifiers in calculations
  • Test and adjust for precise control