diff --git a/source/blender/collada/AnimationImporter.cpp b/source/blender/collada/AnimationImporter.cpp
index 66312f7299f..d27795b0ab2 100644
--- a/source/blender/collada/AnimationImporter.cpp
+++ b/source/blender/collada/AnimationImporter.cpp
@@ -648,12 +648,17 @@ void AnimationImporter:: Assign_float_animations(const COLLADAFW::UniqueId& list
 			//Add the curves of the current animation to the object
 			for (iter = animcurves.begin(); iter != animcurves.end(); iter++) {
 				FCurve *fcu = *iter;
-				/* All anim_types whose values are to be converted from Degree to Radians can be ORed here
-				 *XXX What About " rotation " ? */
-				if (BLI_strcaseeq("spot_size", anim_type))	{
-						/* Convert current values to Radians */
+				/* All anim_types whose values are to be converted from Degree to Radians can be ORed here */
+				if (strcmp("spot_size", anim_type)==0) {
+					/* NOTE: Do NOT convert if imported file was made by blender <= 2.69.10
+					 * Reason: old blender versions stored spot_size in radians (was a bug)
+					 */
+					if (this->import_from_version == "" || BLI_natstrcmp(this->import_from_version.c_str(), "2.69.10") != -1) {
 						fcurve_deg_to_rad(fcu);
+					}
 				}
+				/** XXX What About animtype "rotation" ? */
+
 				BLI_addtail(AnimCurves, fcu);
 			}
 		}
@@ -2011,3 +2016,7 @@ void AnimationImporter::add_bezt(FCurve *fcu, float fra, float value)
 	calchandles_fcurve(fcu);
 }
 
+void AnimationImporter::set_import_from_version(std::string import_from_version)
+{
+	this->import_from_version = import_from_version;
+}
diff --git a/source/blender/collada/AnimationImporter.h b/source/blender/collada/AnimationImporter.h
index 61c220e4bbe..565fe183d02 100644
--- a/source/blender/collada/AnimationImporter.h
+++ b/source/blender/collada/AnimationImporter.h
@@ -89,6 +89,8 @@ private:
 	
 	int typeFlag;
 
+	std::string import_from_version;
+
 	enum lightAnim
 	{
 //		INANIMATE = 0,
@@ -137,6 +139,7 @@ public:
 
 	~AnimationImporter();
 
+	void set_import_from_version(std::string import_from_version);
 	bool write_animation(const COLLADAFW::Animation* anim);
 	
 	// called on post-process stage after writeVisualScenes
diff --git a/source/blender/collada/DocumentImporter.cpp b/source/blender/collada/DocumentImporter.cpp
index f8fc035f620..ea0f6cf0049 100644
--- a/source/blender/collada/DocumentImporter.cpp
+++ b/source/blender/collada/DocumentImporter.cpp
@@ -326,12 +326,43 @@ void DocumentImporter::translate_anim_recursive(COLLADAFW::Node *node, COLLADAFW
 	}
 }
 
+/**
+ * If the imported file was made with Blender, return the Blender version used,
+ * otherwise return an empty std::string
+ */
+std::string DocumentImporter::get_import_version(const COLLADAFW::FileInfo *asset)
+{
+	const char AUTORING_TOOL[] = "authoring_tool";
+	const std::string BLENDER("Blender ");
+	const COLLADAFW::FileInfo::ValuePairPointerArray &valuePairs = asset->getValuePairArray();
+	for ( size_t i = 0, count = valuePairs.getCount(); i < count; ++i)
+	{
+		const COLLADAFW::FileInfo::ValuePair* valuePair = valuePairs[i];
+		const COLLADAFW::String& key = valuePair->first;
+		const COLLADAFW::String& value = valuePair->second;
+		if ( key == AUTORING_TOOL )
+		{
+			if (value.compare(0, BLENDER.length(), BLENDER) == 0)
+			{
+				// Was made with Blender, now get version string
+				std::string v            = value.substr(BLENDER.length());
+				std::string::size_type n = v.find(" ");
+				if (n > 0) {
+					return v.substr(0,n);
+				}
+			}
+		}
+	}
+	return "";
+}
+
 /** When this method is called, the writer must write the global document asset.
  * \return The writer should return true, if writing succeeded, false otherwise.*/
 bool DocumentImporter::writeGlobalAsset(const COLLADAFW::FileInfo *asset)
 {
 	unit_converter.read_asset(asset);
-
+	import_from_version = get_import_version(asset);
+	anim_importer.set_import_from_version(import_from_version);
 	return true;
 }
 
diff --git a/source/blender/collada/DocumentImporter.h b/source/blender/collada/DocumentImporter.h
index ff0cbd44043..96aa7eb4578 100644
--- a/source/blender/collada/DocumentImporter.h
+++ b/source/blender/collada/DocumentImporter.h
@@ -97,6 +97,7 @@ public:
 	void finish();
 
 	bool writeGlobalAsset(const COLLADAFW::FileInfo*);
+	std::string get_import_version(const COLLADAFW::FileInfo *asset);
 
 	bool writeScene(const COLLADAFW::Scene*);
 
@@ -169,6 +170,7 @@ private:
 	std::map<COLLADAFW::UniqueId, COLLADAFW::Node*> root_map; // find root joint by child joint uid, for bone tree evaluation during resampling
 	std::map<COLLADAFW::UniqueId, const COLLADAFW::Object*> FW_object_map;
 
+	std::string import_from_version;
 };
 
 #endif