diff --git a/src/cameras/OrthographicCamera.js b/src/cameras/OrthographicCamera.js
index ff2d85ca20ad1d72d17da9842e79b1834e6904c3..a8461fc47be5874c5eeff75bfc4bfccef0fbb567 100644
--- a/src/cameras/OrthographicCamera.js
+++ b/src/cameras/OrthographicCamera.js
@@ -36,17 +36,17 @@ THREE.OrthographicCamera.prototype.updateProjectionMatrix = function () {
 
 };
 
-THREE.OrthographicCamera.prototype.clone = function () {
-
-	var camera = new this.constructor( this.left, this.right, this.top, this.bottom, this.near, this.far );
-	return camera.copy( this );
-
-};
-
 THREE.OrthographicCamera.prototype.copy = function ( source ) {
 	
 	THREE.Camera.prototype.copy.call( this, source );
 	
+	this.left = source.left;
+	this.right = source.right;
+	this.top = source.top;
+	this.bottom = source.bottom;
+	this.near = source.near;
+	this.far = source.far;
+	
 	this.zoom = source.zoom;
 	
 	return this;
diff --git a/src/cameras/PerspectiveCamera.js b/src/cameras/PerspectiveCamera.js
index 632f74f6da990a2812d7c68c464e68429a3a4a6d..a7fe40165e9a39070b6b90638c0ed99c598b64d1 100644
--- a/src/cameras/PerspectiveCamera.js
+++ b/src/cameras/PerspectiveCamera.js
@@ -122,17 +122,15 @@ THREE.PerspectiveCamera.prototype.updateProjectionMatrix = function () {
 
 };
 
-THREE.PerspectiveCamera.prototype.clone = function () {
-
-	var camera = new this.constructor( this.fov, this.aspect, this.near, this.far );
-	return camera.copy( this );
-
-};
-
 THREE.PerspectiveCamera.prototype.copy = function ( source ) {
 	
 	THREE.Camera.prototype.copy.call( this, source );
 	
+	this.fov = source.fov;
+	this.aspect = source.aspect;
+	this.near = source.near;
+	this.far = source.far;
+	
 	this.zoom = source.zoom;
 	
 	return this;