diff --git a/plugins/SfCamera.java b/plugins/SfCamera.java
index a68ce6a..f1342db 100644
--- a/plugins/SfCamera.java
+++ b/plugins/SfCamera.java
@@ -192,16 +192,16 @@ public class SfCamera extends PsiCamera{
             getConfig().spatialCalOffsetX = cameraConfig.getCalOffsetX();
             getConfig().spatialCalOffsetY = cameraConfig.getCalOffsetY();
         } catch (Exception ex) {
-            getConfig().spatialCalOffsetX = Double.NaN;
-            getConfig().spatialCalOffsetY = Double.NaN;          
+            getConfig().spatialCalOffsetX = 0.0;
+            getConfig().spatialCalOffsetY = 0.0;          
         }
         try {
             getConfig().spatialCalScaleX = -cameraConfig.getScaleX();
             getConfig().spatialCalScaleY = -cameraConfig.getScaleY();                    
         } catch (Exception ex) {
             getLogger().log(Level.WARNING, null, ex);
-            getConfig().spatialCalScaleX = Double.NaN;
-            getConfig().spatialCalScaleY = Double.NaN;
+            getConfig().spatialCalScaleX = 1.0;
+            getConfig().spatialCalScaleY = 1.0;
         }
         getConfig().save();            
     }