CameraControl.focusDistanceNear Redirect 2

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This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

This API is available on Firefox OS for 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.

See also

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 Last updated by: Sheppy,