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CameraControl.focalLength

This API is available on Firefox OS for privileged or certified applications only.

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

Document Tags and Contributors

 Contributors to this page: chrisdavidmills, teoli, MHasan, ajaybhat, kscarfone, Sheppy, Jeremie
 Last updated by: chrisdavidmills,