diff --git a/src/ol/source/staticimagesource.js b/src/ol/source/staticimagesource.js
index 2509d3b526..74dd079a63 100644
--- a/src/ol/source/staticimagesource.js
+++ b/src/ol/source/staticimagesource.js
@@ -2,6 +2,7 @@ goog.provide('ol.source.StaticImage');
 
 goog.require('ol.Image');
 goog.require('ol.ImageUrlFunctionType');
+goog.require('ol.extent');
 goog.require('ol.projection');
 goog.require('ol.source.ImageSource');
 
@@ -19,7 +20,7 @@ ol.source.StaticImage = function(options) {
 
   var imageExtent = options.imageExtent;
   var imageSize = options.imageSize;
-  var imageResolution = imageExtent.getHeight() / imageSize.height;
+  var imageResolution = (imageExtent[3] - imageExtent[2]) / imageSize.height;
   var projection = ol.projection.get(options.projection);
 
   goog.base(this, {
@@ -47,7 +48,7 @@ goog.inherits(ol.source.StaticImage, ol.source.ImageSource);
  */
 ol.source.StaticImage.prototype.getImage =
     function(extent, resolution, projection) {
-  if (extent.intersects(this.image_.getExtent())) {
+  if (ol.extent.intersects(extent, this.image_.getExtent())) {
     return this.image_;
   }
   return null;