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


The focusDistanceNear property value is a distance in meters used with CameraControl.focusDistanceFar to define the image's depth of field.


var max = instanceOfCameraControl.focusDistanceFar


Return a number representing a distance in meters.


var options = {
  camera: navigator.mozCameras.getListOfCameras()[0]
function onSuccess( camera ) {
  var max = camera.focusDistanceFar,
      min = camera.focusDistanceNear;

  console.log("The image's depth of field is: " + (max-min) + "m");

navigator.mozCameras.getCamera(options, onSuccess)


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

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