CameraControl.focalLength

Summary

The focalLength property value is a read-only property that returns a number that expresses the camera's focal length in millimeters.

Syntax

var focal = instanceOfCameraControl.focalLength

Value

Return a number representing the camera's focal length in millimeters.

Example

var options = {
  camera: navigator.mozCameras.getListOfCameras()[0]
};
 
function onSuccess( camera ) {
  var focal = camera.focalLength;

  console.log("The camera's focal length is: " + focal + "mm");
};

navigator.mozCameras.getCamera(options, onSuccess)

Specification

Not part of any specification; however, this API should be removed when the WebRTC Capture and Stream API has been implemented.

See also

• CameraCapabilities
• CameraControl