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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).
This calculator determines the horizontal and vertical fields of view of a lens.
To run, select the size of the sensor, focal length of the lens and working distance and then click the calculate button.