Index: /trunk/Mars/mhist/MHCamera.cc
===================================================================
--- /trunk/Mars/mhist/MHCamera.cc	(revision 18848)
+++ /trunk/Mars/mhist/MHCamera.cc	(revision 18849)
@@ -278,4 +278,7 @@
 #endif
    const Int_t bin = (Int_t)x+1;
+   if (bin<0 || bin>fNcells-1)
+       return -1;
+
    AddBinContent(bin, w);
    fBinEntries[bin]++;
@@ -803,5 +806,5 @@
         h1->SetTitle(GetTitle());
         h1->SetDirectory(0);
-        h1->SetXTitle("Radius from camera center [mm]");
+        h1->SetXTitle("Radius from camera center [deg]");
         h1->SetYTitle(GetYaxis()->GetTitle());
     }