This single-file solution contains the complete responsive application with real-time calculations, dynamic charting, and a clean, premium studio-grade interface. ```html Free Inverse Square Law & Light Falloff Calculator for Photography

Inverse Square Law & Light Falloff

Professional-grade calculator for determining light falloff, fill light ratios, and exposure stops in studio environments.

Parameters

15.020
110.020

Exposure Drop (Stops)

0.00 stops

Between Key and Fill position.

Fill Ratio

1 : 4.00

Key Light : Fill Light Ratio

Inverse Square Falloff Curve