diff --git a/include/osg/CullSettings b/include/osg/CullSettings
index dece95893..38f2dc5c5 100644
--- a/include/osg/CullSettings
+++ b/include/osg/CullSettings
@@ -217,7 +217,8 @@ class OSG_EXPORT CullSettings
         /** Get the LOD bias.*/
         float getLODScale() const { return _LODScale; }
 
-        /** Set the Small Feature Culling Pixel Size.*/
+        /** Threshold at which small features are culled.
+        \param value Boulding volume size in screen space. Default is 2.0. */
         void setSmallFeatureCullingPixelSize(float value) { _smallFeatureCullingPixelSize=value; applyMaskAction(SMALL_FEATURE_CULLING_PIXEL_SIZE); }
 
         /** Get the Small Feature Culling Pixel Size.*/
diff --git a/include/osg/CullingSet b/include/osg/CullingSet
index cb1739827..549237e3e 100644
--- a/include/osg/CullingSet
+++ b/include/osg/CullingSet
@@ -161,6 +161,8 @@ class OSG_EXPORT CullingSet : public Referenced
         Vec4& getPixelSizeVector() { return _pixelSizeVector; }
         const Vec4& getPixelSizeVector() const { return _pixelSizeVector; }
 
+        /** Threshold at which small features are culled.
+        \param value Boulding volume size in screen space. Default is 2.0. */
         void setSmallFeatureCullingPixelSize(float value) { _smallFeatureCullingPixelSize=value; }
         
         float& getSmallFeatureCullingPixelSize() { return _smallFeatureCullingPixelSize; }
diff --git a/src/osg/CullingSet.cpp b/src/osg/CullingSet.cpp
index 41e12e4b4..5ab7f79b4 100644
--- a/src/osg/CullingSet.cpp
+++ b/src/osg/CullingSet.cpp
@@ -18,7 +18,7 @@ CullingSet::CullingSet()
 {
     _mask = ENABLE_ALL_CULLING;
     _pixelSizeVector.set(0,0,0,1);
-    _smallFeatureCullingPixelSize=1.0f;
+    _smallFeatureCullingPixelSize=2.0f;
 }
 
 CullingSet::~CullingSet()