Index: /trunk/src/transform_field/phys.m
===================================================================
--- /trunk/src/transform_field/phys.m	(revision 210)
+++ /trunk/src/transform_field/phys.m	(revision 211)
@@ -282,5 +282,5 @@
 test_refraction=0;
 if exist('Zindex','var')&& isequal(Zindex,round(Zindex))&& Zindex>0 && isfield(Calib,'SliceCoord')&&length(Calib.SliceCoord)>=Zindex
-    if isfield(Calib, 'SliceAngle') && ~isequal(Calib.SliceAngle,0)
+    if isfield(Calib, 'SliceAngle') && ~isequal(Calib.SliceAngle,[0 0 0])
         testangle=1;
         om=norm(Calib.SliceAngle(Zindex,:));%norm of rotation angle in radians