Welcome to Fujinon CCTV's Optcal calculator application. Use the tools below to calculate the various conversions from different formats.
Calculate the field of view given the object distance, lens format, camera format and lens focal length.
To determine effective focal length when using a larger format lens on a camera of a smaller format.
Calculate the lens focal length given the object distance, camera format and desired vertical or horizontal image size.
To determine the equivalent focal length of different camera formats.