diff --git a/release/scripts/bpymodules/BPyRender.py b/release/scripts/bpymodules/BPyRender.py
index 6f9c9997933..951e1ae6300 100644
--- a/release/scripts/bpymodules/BPyRender.py
+++ b/release/scripts/bpymodules/BPyRender.py
@@ -125,14 +125,14 @@ def imageFromObjectsOrtho(objects, path, width, height, smooth, alpha= True, cam
 			# camera is wider then image res.
 			# to make the image wider, reduce the aspy
 			asp_diff= asp_image_res/asp_cam_mat
-			min_asp= int(round(asp_diff * 200))
+			min_asp= asp_diff * 200
 			#print 'X', min_asp
 			
 		elif asp_cam_mat < asp_image_res: # asp_cam_mat < asp_image_res
 			# camera is narrower then image res
 			# to make the image narrower, reduce the aspx
 			asp_diff= asp_cam_mat/asp_image_res
-			min_asp= int(round(asp_diff * 200))
+			min_asp= asp_diff * 200
 			#print 'Y', min_asp
 		else:
 			min_asp= 200
diff --git a/source/blender/makesdna/DNA_scene_types.h b/source/blender/makesdna/DNA_scene_types.h
index 05fce5e4598..e5056e048ce 100644
--- a/source/blender/makesdna/DNA_scene_types.h
+++ b/source/blender/makesdna/DNA_scene_types.h
@@ -201,14 +201,6 @@ typedef struct RenderData {
 	 * The desired number of pixels in the y direction
 	 */
 	short ysch;
-	/**
-	 * Adjustment factors for the aspect ratio in the x direction
-	 */
-	short xasp;
-	/**
-	 * Adjustment factors for the aspect ratio in the x direction
-	 */
-	short yasp;
 	/**
 	 * The number of part to use in the x direction
 	 */
@@ -225,7 +217,7 @@ typedef struct RenderData {
 	short bufflag;
  	short quality;
 	
-	short rpad;
+	short rpad, rpad1, rpad2;
 
 	/**
 	 * Flags for render settings. Use bit-masking to access the settings.
@@ -260,6 +252,15 @@ typedef struct RenderData {
 	/* information on different layers to be rendered */
 	ListBase layers;
 	short actlay, pad;
+	
+	/**
+	 * Adjustment factors for the aspect ratio in the x direction, was a short in 2.45
+	 */
+	float xasp;
+	/**
+	 * Adjustment factors for the aspect ratio in the x direction, was a short in 2.45
+	 */
+	float yasp;
 
 	float frs_sec_base;
 	
diff --git a/source/blender/python/api2_2x/sceneRender.c b/source/blender/python/api2_2x/sceneRender.c
index b12ee85fe2b..5f81ea27176 100644
--- a/source/blender/python/api2_2x/sceneRender.c
+++ b/source/blender/python/api2_2x/sceneRender.c
@@ -919,6 +919,18 @@ PyObject *RenderData_GaussFilterSize( BPy_RenderData * self, PyObject * args )
 					      0.5f, 1.5f );
 }
 
+PyObject *RenderData_AspectRatioX( BPy_RenderData * self, PyObject * args )
+{
+	return M_Render_GetSetAttributeFloat( args, &self->renderContext->xasp,
+					      1.0f, 200.0f );
+}
+
+PyObject *RenderData_AspectRatioY( BPy_RenderData * self, PyObject * args )
+{
+	return M_Render_GetSetAttributeFloat( args, &self->renderContext->yasp,
+					      1.0f, 200.0f );
+}
+
 PyObject *RenderData_StartFrame( BPy_RenderData * self, PyObject * args )
 {
 	return M_Render_GetSetAttributeInt( args, &self->renderContext->sfra,
@@ -949,18 +961,6 @@ PyObject *RenderData_ImageSizeY( BPy_RenderData * self, PyObject * args )
 					      4, 10000 );
 }
 
-PyObject *RenderData_AspectRatioX( BPy_RenderData * self, PyObject * args )
-{
-	return M_Render_GetSetAttributeShort( args, &self->renderContext->xasp,
-					      1, 200 );
-}
-
-PyObject *RenderData_AspectRatioY( BPy_RenderData * self, PyObject * args )
-{
-	return M_Render_GetSetAttributeShort( args, &self->renderContext->yasp,
-					      1, 200 );
-}
-
 static int RenderData_setRenderer( BPy_RenderData * self, PyObject * value )
 {
 	int type;
@@ -1868,6 +1868,12 @@ static PyObject *RenderData_getFloatAttr( BPy_RenderData *self, void *type )
 	case EXPP_RENDER_ATTR_BAKEBIAS:
 		param = self->renderContext->bake_biasdist;
 		break;
+	case EXPP_RENDER_ATTR_ASPECTX:
+		param = (long)self->renderContext->xasp;
+		break;
+	case EXPP_RENDER_ATTR_ASPECTY:
+		param = (long)self->renderContext->yasp;
+		break;
 	default:
 		return EXPP_ReturnPyObjError( PyExc_RuntimeError,
 				"undefined type constant in RenderData_getFloatAttr" );
@@ -1911,6 +1917,16 @@ static int RenderData_setFloatAttrClamp( BPy_RenderData *self, PyObject *value,
 		max = 1000.0f;
 		param = &self->renderContext->bake_biasdist;
 		break;
+	case EXPP_RENDER_ATTR_ASPECTX:
+		min = 1.0f;
+		max = 200.0f;
+		param = &self->renderContext->xasp;
+		break;
+	case EXPP_RENDER_ATTR_ASPECTY:
+		min = 1.0f;
+		max = 200.0f;
+		param = &self->renderContext->yasp;
+		break;
 	default:
 		return EXPP_ReturnIntError( PyExc_RuntimeError,
 				"undefined type constant in RenderData_setFloatAttrClamp" );
@@ -1933,12 +1949,6 @@ static PyObject *RenderData_getIValueAttr( BPy_RenderData *self, void *type )
 	case EXPP_RENDER_ATTR_YPARTS:
 		param = (long)self->renderContext->yparts;
 		break;
-	case EXPP_RENDER_ATTR_ASPECTX:
-		param = (long)self->renderContext->xasp;
-		break;
-	case EXPP_RENDER_ATTR_ASPECTY:
-		param = (long)self->renderContext->yasp;
-		break;
 	case EXPP_RENDER_ATTR_CFRAME:
 		param = (long)self->renderContext->cfra;
 		break;
@@ -1996,18 +2006,6 @@ static int RenderData_setIValueAttrClamp( BPy_RenderData *self, PyObject *value,
 		size = 'h';
 		param = &self->renderContext->yparts;
 		break;
-	case EXPP_RENDER_ATTR_ASPECTX:
-		min = 1;
-		max = 200;
-	   	size = 'h';
-		param = &self->renderContext->xasp;
-		break;
-	case EXPP_RENDER_ATTR_ASPECTY:
-		min = 1;
-		max = 200;
-	   	size = 'h';
-		param = &self->renderContext->yasp;
-		break;
 	case EXPP_RENDER_ATTR_CFRAME:
 		min = 1;
 		max = MAXFRAME;
@@ -2726,14 +2724,6 @@ static PyGetSetDef BPy_RenderData_getseters[] = {
 	 (getter)RenderData_getIValueAttr, (setter)RenderData_setIValueAttrClamp,
 	 "Number of vertical parts for image render",
 	 (void *)EXPP_RENDER_ATTR_YPARTS},
-	{"aspectX",
-	 (getter)RenderData_getIValueAttr, (setter)RenderData_setIValueAttrClamp,
-	 "Horizontal aspect ratio",
-	 (void *)EXPP_RENDER_ATTR_ASPECTX},
-	{"aspectY",
-	 (getter)RenderData_getIValueAttr, (setter)RenderData_setIValueAttrClamp,
-	 "Vertical aspect ratio",
-	 (void *)EXPP_RENDER_ATTR_ASPECTY},
 	{"cFrame",
 	 (getter)RenderData_getIValueAttr, (setter)RenderData_setIValueAttrClamp,
 	 "The current frame for rendering",
@@ -2771,6 +2761,14 @@ static PyGetSetDef BPy_RenderData_getseters[] = {
 	 (getter)RenderData_getFloatAttr, (setter)RenderData_setFloatAttrClamp,
 	 "Motion blur factor",
 	 (void *)EXPP_RENDER_ATTR_MBLURFACTOR},
+	{"aspectX",
+	 (getter)RenderData_getFloatAttr, (setter)RenderData_setFloatAttrClamp,
+	 "Horizontal aspect ratio",
+	 (void *)EXPP_RENDER_ATTR_ASPECTX},
+	{"aspectY",
+	 (getter)RenderData_getFloatAttr, (setter)RenderData_setFloatAttrClamp,
+	 "Vertical aspect ratio",
+	 (void *)EXPP_RENDER_ATTR_ASPECTY},
 	{"mapOld",
 	 (getter)RenderData_getMapOld, (setter)RenderData_setMapOld,
 	 "Number of frames the Map Old will last",
diff --git a/source/blender/src/buttons_scene.c b/source/blender/src/buttons_scene.c
index 40ff0d5cff6..0228754b599 100644
--- a/source/blender/src/buttons_scene.c
+++ b/source/blender/src/buttons_scene.c
@@ -2497,8 +2497,18 @@ static void render_panel_format(void)
 	uiBlockBeginAlign(block);
 	uiDefButS(block, NUM,REDRAWVIEWCAM,"SizeX:",	892 ,136,112,27, &G.scene->r.xsch, 4.0, 10000.0, 0, 0, "The image width in pixels");
 	uiDefButS(block, NUM,REDRAWVIEWCAM,"SizeY:",	1007,136,112,27, &G.scene->r.ysch, 4.0,10000.0, 0, 0, "The image height in scanlines");
-	uiDefButS(block, NUM,REDRAWVIEWCAM,"AspX:",	892 ,114,112,20, &G.scene->r.xasp, 1.0,200.0, 0, 0, "The horizontal aspect ratio");
-	uiDefButS(block, NUM,REDRAWVIEWCAM,"AspY:",	1007,114,112,20, &G.scene->r.yasp, 1.0,200.0, 0, 0, "The vertical aspect ratio");
+	
+	uiDefButF(block, NUM, REDRAWVIEWCAM, "AspX:",
+				892 ,114,112,20,
+				&G.scene->r.xasp,
+				1, 200, 100, 2,
+				"Horizontal Aspect Ratio");
+	uiDefButF(block, NUM, REDRAWVIEWCAM, "AspY:",
+			 	1007,114,112,20,
+			 	&G.scene->r.yasp,
+			 	1, 200, 100, 2,
+			 	"Vertical Aspect Ratio");
+	
 	uiBlockEndAlign(block);
 
 	yofs = 54;