CameraCapabilities.zoomRatios Redirect 1

« DOM Reference

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 zoomRatios property is an Array of numbers representing all the supported zoom ratios. If the camera has no zoom capabilities, the value is null.


var zooms = instanceOfCameraControl.capabilities.zoomRatios


Return an Array of numbers, or null if the camera has no zoom capabilities.


var options = {
  camera: navigator.mozCameras.getListOfCameras()[0]
function onSuccess(camera) {
  var zooms = camera.capabilities.zoomRatios;

  if (Array.isArray(zooms)) {
    zooms.forEach(function (value) {

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,