Lens Calculator

Welcome to Fujinon CCTV's Optcal calculator application. Use the tools below to calculate the various conversions from different formats.

Field of View

Calculate the field of view given the object distance, lens format, camera format and lens focal length.

Effective Focal Length

To determine effective focal length when using a larger format lens on a camera of a smaller format.

Lens Focal Length

Calculate the lens focal length given the object distance, camera format and desired vertical or horizontal image size.

Camera/Lens Format Conversion

To determine the equivalent focal length of different camera formats.