EFL&FOV Calculator
The EFL & HFOV Calculator Tool allows you to quickly calculate the field of view (FOV) or effective focal length (EFL) of your optical system. Simply input the detector parameters and lens parameters to generate calculation results.
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. -