Free filmmaker tool

Focal Length Match

Choose a camera and lens to compare its full-frame-equivalent field of view across common 4K frame rates.

Enter a focal length from 1–200 mm.

Quick comparisonSelect a camera, then enter the focal length printed on your lens.

4K · 24 fps
4K · 60 fps
4K · 120 fps

Field-of-view comparison

Equivalent focal length = lens focal length × sensor crop × recording-mode crop. Values are rounded to 0.1 mm. Recording behavior can change with resolution, aspect ratio, firmware and oversampling mode; verify the mode in your camera manual before purchasing a lens.