Video Lighting Calculator

Calculate the exact illuminance your scene needs for correct video exposure — then get a complete three-point lighting plan with wattage per fixture. Works for any camera, frame rate, and location.

Production preset — or set manually below
Indie / run and gun
ISO 800, f/2.8, 24fps
Corporate / interview
ISO 400, f/4, 25fps
Broadcast / studio
ISO 200, f/5.6, 25fps
Cinema / narrative
ISO 800, f/4, 24fps
Sport / action
ISO 1600, f/4, 60fps
Product / tabletop
ISO 100, f/8, 25fps
Camera settings
Scene and fixture details

Please check your inputs.

Scene illuminance needed (key zone)
0 lux
0
Foot-candles
0
Shutter speed
0W
Total fixture watts
Three-point lighting plan
How ISO changes your lighting requirement
ISOLux neededKey (W)vs current
Camera settings
Shutter speed (180 deg rule)
Required scene illuminance
Key light wattage
Total three-point wattage
Formula used
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The calculators and tools on Formula Factory are provided for general guidance and informational purposes only. Results are estimates based on standard formulas and the values you enter — they do not constitute professional engineering, electrical, or architectural advice. Always verify calculations with a qualified professional before making decisions for any safety-critical, code-compliance, or commercial application. Formula Factory makes no representations or warranties as to the accuracy or completeness of any result, and accepts no liability for errors, omissions, or any outcomes arising from reliance on this information.