Lens Calculator

Find the focal length needed to fit your object in frame using sensor size, object dimensions, and working distance.

Inputs

Sensor format and object coverage at the working plane.

Sensor size

Active area: 8.8 × 6.6 mm

Working distance

Object width

Object height

Results

Calculated focal length and nearest common lens.

Focal length (width)

Focal length (height)

Recommended focal length

Magnification

Nearest common lens

25 mmC-mount / F-mount industrial lenses

How it works: Thin-lens model f = sensor × WD / object. When width and height disagree, the longer focal length is recommended so the full object fits.