diff --git a/src/tiledimage.js b/src/tiledimage.js
index ccc51601..74ffacef 100644
--- a/src/tiledimage.js
+++ b/src/tiledimage.js
@@ -1018,7 +1018,7 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
         );
         var currentZeroRatio = this.viewport.deltaPixelsFromPointsNoRotate(
             this.source.getPixelRatio(0), true).x *
-            this._scaleSpring.current.value * $.pixelDensityRatio;
+            this._scaleSpring.current.value;
         var highestLevel = Math.min(
             Math.abs(this.source.maxLevel),
             Math.abs(Math.floor(
@@ -1082,7 +1082,7 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
             var currentRenderPixelRatio = viewport.deltaPixelsFromPointsNoRotate(
                 this.source.getPixelRatio(level),
                 true
-            ).x * this._scaleSpring.current.value * $.pixelDensityRatio;
+            ).x * this._scaleSpring.current.value;
 
             if (level === lowestLevel ||
                 (!haveDrawn && currentRenderPixelRatio >= this.minPixelRatio)) {
diff --git a/src/tilesource.js b/src/tilesource.js
index fcf2be82..aab7f134 100644
--- a/src/tilesource.js
+++ b/src/tilesource.js
@@ -313,8 +313,8 @@ $.TileSource.prototype = {
      */
     getPixelRatio: function( level ) {
         var imageSizeScaled = this.dimensions.times( this.getLevelScale( level ) ),
-            rx = 1.0 / imageSizeScaled.x,
-            ry = 1.0 / imageSizeScaled.y;
+            rx = 1.0 / imageSizeScaled.x * $.pixelDensityRatio,
+            ry = 1.0 / imageSizeScaled.y * $.pixelDensityRatio;
 
         return new $.Point(rx, ry);
     },