Lens Calculator

Field of view, focal length, working distance, and sensor matching for machine vision applications.

Sensor format (or enter dimensions manually below)

Sensor width (horizontal)

Sensor height (vertical)

Working distance

Focal length

Resulting Field of View

Horizontal—

Vertical—

Diagonal—

Hor. angle—

Ver. angle—

Dia. angle—

FoV = Sensor × WD / FL · AFoV = 2 × atan(Sensor / 2FL)

Sensor format

Sensor width (horizontal)

Desired FoV (horizontal)

Working distance — ideal

Working distance — min

Working distance — max

Required Focal Length

Ideal FL—

Min FL (at WD min)—

Max FL (at WD max)—

FL = Sensor × WD / FoV

Sensor format

Sensor width (horizontal)

Desired FoV (horizontal)

Focal length

Required Working Distance

WD—

WD = FoV × FL / Sensor

Sensor format

Sensor width (horizontal)

Sensor height (vertical)

Primary magnification (PMAG)

Resulting Field of View

Horizontal—

Vertical—

Diagonal—

FoV = Sensor / PMAG · PMAG = Sensor / FoV

Pixel size (pixel pitch)

µm

Pixel count — horizontal

Pixel count — vertical

Sensor & Resolution

Sensor width—

Sensor height—

Sensor diagonal—

Resolution—

Nyquist (lens needs)—

Nyquist [lp/mm] = 1000 / (2 × pixel pitch [µm])