Index: trunk/psModules/src/camera/pmFPAMaskWeight.c
===================================================================
--- trunk/psModules/src/camera/pmFPAMaskWeight.c	(revision 25979)
+++ trunk/psModules/src/camera/pmFPAMaskWeight.c	(revision 26076)
@@ -444,5 +444,6 @@
     }
 
-    return true;
+    return psMetadataAddF32(readout->analysis, PS_LIST_TAIL, PM_READOUT_ANALYSIS_RENORM, 0,
+                            "Renormalisation of variance", PS_SQR(correction));
 }
 
Index: trunk/psModules/src/camera/pmFPAMaskWeight.h
===================================================================
--- trunk/psModules/src/camera/pmFPAMaskWeight.h	(revision 25979)
+++ trunk/psModules/src/camera/pmFPAMaskWeight.h	(revision 26076)
@@ -15,4 +15,6 @@
 /// @addtogroup Camera Camera Layout
 /// @{
+
+#define PM_READOUT_ANALYSIS_RENORM "READOUT.RENORM" // Name on analysis metadata for renormalisation
 
 /// Set a temporary readout mask using CELL.SATURATION and CELL.BAD