diff --git a/source/blender/collada/CameraExporter.cpp b/source/blender/collada/CameraExporter.cpp
index be424fbbb4d..7d438f7f12f 100644
--- a/source/blender/collada/CameraExporter.cpp
+++ b/source/blender/collada/CameraExporter.cpp
@@ -84,7 +84,7 @@ void CamerasExporter::operator()(Object *ob, Scene *sce)
 		default:
 		{
 			COLLADASW::OrthographicOptic ortho(mSW);
-			ortho.setXMag(cam->ortho_scale, "xmag");
+			ortho.setXMag(cam->ortho_scale / 2, "xmag");
 			ortho.setAspectRatio((float)(sce->r.xsch) / (float)(sce->r.ysch), false, "aspect_ratio");
 			ortho.setZFar(cam->clipend, false, "zfar");
 			ortho.setZNear(cam->clipsta, false, "znear");
diff --git a/source/blender/collada/DocumentImporter.cpp b/source/blender/collada/DocumentImporter.cpp
index ca07512f439..6aa600cabe2 100644
--- a/source/blender/collada/DocumentImporter.cpp
+++ b/source/blender/collada/DocumentImporter.cpp
@@ -846,7 +846,7 @@ bool DocumentImporter::writeCamera(const COLLADAFW::Camera *camera)
 			switch (cam->type) {
 				case CAM_ORTHO:
 				{
-					double ymag = camera->getYMag().getValue();
+					double ymag = 2 * camera->getYMag().getValue();
 					double aspect = camera->getAspectRatio().getValue();
 					double xmag = aspect * ymag;
 					cam->ortho_scale = (float)xmag;
@@ -873,7 +873,7 @@ bool DocumentImporter::writeCamera(const COLLADAFW::Camera *camera)
 		{
 			switch (cam->type) {
 				case CAM_ORTHO:
-					cam->ortho_scale = (float)camera->getXMag().getValue();
+					cam->ortho_scale = (float)camera->getXMag().getValue() * 2;
 					break;
 				case CAM_PERSP:
 				default: