Peter Hurley - How to Understand the Inverse Square Law - Photo Lighting Explained

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In this short excerpt from Fstopper's photography tutorial Illuminating the Face, headshot photographer Peter Hurley explains how the inverse square law works both mathematically as well as how it can be used in the studio to change the look of your portraits.

For more scientific theory on how lighting works in photography, our favorite resource is a booked called Lighting: Science and Magic. Check it out here: