Index: trunk/Mars/msim/MHPhotonEvent.cc
===================================================================
--- trunk/Mars/msim/MHPhotonEvent.cc	(revision 9943)
+++ trunk/Mars/msim/MHPhotonEvent.cc	(revision 9944)
@@ -146,6 +146,6 @@
     Init(name, title);
 
-    const MBinning binsd(50, -max, max);
-    const MBinning binsa(50, -1,   1);
+    const MBinning binsd(51, -max, max);
+    const MBinning binsa(51, -1,   1);
 
     SetBinning(fHistXY, binsd, binsd);
@@ -165,5 +165,5 @@
     Init(name, title);
 
-    const MBinning bins(50, -1, 1);
+    const MBinning bins(51, -1, 1);
 
     SetBinning(fHistUV, bins, bins);
@@ -182,5 +182,5 @@
     MH::FindGoodLimits(num, num, min, max, kFALSE);
 
-    const MBinning binsd(num, min, max);
+    const MBinning binsd(num+1, min, max);
 
     SetBinning(fHistXY, binsd, binsd);