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Home Calculators Focal Length Calculator

Error message

  • Notice: Trying to access array offset on value of type null in _field_invoke_multiple() (line 307 of /home2/channelsystems/public_html/modules/field/field.attach.inc).
  • Notice: Trying to access array offset on value of type null in _field_invoke_multiple() (line 308 of /home2/channelsystems/public_html/modules/field/field.attach.inc).
  • Notice: Trying to access array offset on value of type null in _field_invoke_multiple() (line 310 of /home2/channelsystems/public_html/modules/field/field.attach.inc).
  • Notice: Trying to access array offset on value of type null in _field_invoke_multiple() (line 307 of /home2/channelsystems/public_html/modules/field/field.attach.inc).
  • Notice: Trying to access array offset on value of type null in _field_invoke_multiple() (line 308 of /home2/channelsystems/public_html/modules/field/field.attach.inc).
  • Notice: Trying to access array offset on value of type null in field_available_languages() (line 95 of /home2/channelsystems/public_html/modules/field/field.multilingual.inc).
  • Notice: Trying to access array offset on value of type null in field_is_translatable() (line 176 of /home2/channelsystems/public_html/modules/field/field.multilingual.inc).
  • Notice: Trying to access array offset on value of type null in _field_invoke_multiple() (line 338 of /home2/channelsystems/public_html/modules/field/field.attach.inc).
  • Notice: Trying to access array offset on value of type null in _field_invoke() (line 199 of /home2/channelsystems/public_html/modules/field/field.attach.inc).
  • Notice: Trying to access array offset on value of type null in _field_invoke() (line 200 of /home2/channelsystems/public_html/modules/field/field.attach.inc).
  • Notice: Trying to access array offset on value of type null in field_available_languages() (line 95 of /home2/channelsystems/public_html/modules/field/field.multilingual.inc).
The width of the target
The width of the target
The distance from the target to the focal point of the lens
Focal Length:

This calculator determines the focal length required to image a target at a specified field of view and working distance.

To run, select the size of the sensor, either the horizontal or vertical field of view , the working distance to the target and then click the calculate button.

Sensor Size and Dimensions
Field of View & Focal Length Diagram