EFL&FOV Calculator
Simply enter your sensor size and lens specifications to calculate horizontal field of view (HFOV) and effective focal length (EFL). This tool is ideal for lens selection, optical system design and camera configuration.
EFL Calculator
FOV Calculator
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Wavelength: *LWIRMWIRFormat (px) : *
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1280*1024
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1280*10241024*768640*512640*480384*288336*256320*240
Pixel Pitch(μm) : *HFOV*CountCancel
Please note that this calculation is based on geometrical parameters (target size, distance, focal length, and pixel size). The result is an idealized estimate and does not account for signal strength, detector sensitivity, or atmospheric effects. -
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Wavelength: *LWIRMWIRFormat (px) : *
-
1280*1024
-
1280*10241024*768640*512640*480384*288336*256320*240
Pixel Pitch(μm) : *Focal Length(mm): *CountCancel
Please note that this calculation is based on geometrical parameters (target size, distance, focal length, and pixel size). The result is an idealized estimate and does not account for signal strength, detector sensitivity, or atmospheric effects. -