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.
