diff --git a/source/UI/js/Image/ImageViewer.js b/source/UI/js/Image/ImageViewer.js
index d95db5cd..00cb7855 100644
--- a/source/UI/js/Image/ImageViewer.js
+++ b/source/UI/js/Image/ImageViewer.js
@@ -510,8 +510,8 @@ Ox.ImageViewer = function(options, self) {
 
     function onMousewheel(e) {
         var $target = $(e.target),
-            factor = e.deltaY < 0 ? 2 : 0.5;
-        if (e.deltaX == 0 && Math.abs(e.deltaY) > 10 && !self.mousewheelTimeout) {
+            factor = e.deltaY > 0 ? 2 : 0.5;
+        if (e.deltaX == 0 && Math.abs(e.deltaY) && !self.mousewheelTimeout) {
             if ($target.is('.OxImage') || $target.is('.OxImageOverlayArea')) {
                 self.options.center = getZoomCenter(e, factor);
                 self.options.zoom = self.zoom * factor;
@@ -640,4 +640,4 @@ Ox.ImageViewer = function(options, self) {
 
     return that;
 
-};
\ No newline at end of file
+};