Index: trunk/MagicSoft/Mars/mhist/MHHillasSrc.cc
===================================================================
--- trunk/MagicSoft/Mars/mhist/MHHillasSrc.cc	(revision 1534)
+++ trunk/MagicSoft/Mars/mhist/MHHillasSrc.cc	(revision 1540)
@@ -155,11 +155,11 @@
 void MHHillasSrc::SetMm2Deg(Float_t mmdeg)
 {
-    if (mmdeg<0)
-    {
-        *fLog << warn << dbginf << "Warning - Conversion factor < 0 - nonsense. Ignored." << endl;
+    if (mmdeg<=0)
+    {
+        *fLog << warn << dbginf << "Warning - Conversion factor <= 0 - nonsense. Ignored." << endl;
         return;
     }
 
-    if (fMm2Deg>=0)
+    if (fMm2Deg>0)
         *fLog << warn << dbginf << "Warning - Conversion factor already set. Overwriting" << endl;
 
Index: trunk/MagicSoft/Mars/mhist/MHStarMap.cc
===================================================================
--- trunk/MagicSoft/Mars/mhist/MHStarMap.cc	(revision 1534)
+++ trunk/MagicSoft/Mars/mhist/MHStarMap.cc	(revision 1540)
@@ -119,5 +119,5 @@
     {
         float r = geom ? geom->GetMaxRadius() : 600;
-        r *= 2./3;
+        r *= 5./6;
         if (!fUseMmScale)
             r *= fMm2Deg;