This is a complete, single-file "Free Photography Flash Duration Motion Freeze Calculator" application. It uses Tailwind CSS for layout, Lucide for iconography, and Inter from Google Fonts for typography. It is fully self-contained, interactive, and mobile-responsive. ```html Free Photography Flash Duration Motion Freeze Calculator

Motion Freeze Calculator

Calculate the flash duration required to freeze subject motion with precision.

Settings

How it works

To freeze motion, the subject must move less than your selected "Allowed Blur" across the sensor during the flash pulse. We calculate this by determining the magnification ratio (Focal Length / Distance) and comparing it against the subject's velocity.

Note: Always aim for a shorter flash duration than the calculated result to ensure maximum sharpness.

Required Flash Duration

0.0
milliseconds (t.1)
Configure parameters to see results
Subject Velocity: -
Magnification: -