diff --git a/pylot/RELEASE-VERSION b/pylot/RELEASE-VERSION
index 6bf29797..d2392439 100644
--- a/pylot/RELEASE-VERSION
+++ b/pylot/RELEASE-VERSION
@@ -1 +1 @@
-f91e1-dirty
+97ee-dirty
diff --git a/pylot/core/io/default_parameters.py b/pylot/core/io/default_parameters.py
index 93d55ae4..c936436b 100644
--- a/pylot/core/io/default_parameters.py
+++ b/pylot/core/io/default_parameters.py
@@ -282,8 +282,24 @@ defaults = {'rootpath': {'type': str,
                          'value': (1.0, 1.0, 1.0)},
 
             'magscaling': {'type': (float, float),
-                         'tooltip': 'Scaling relation for derived local magnitude [a*Ml+b]',
-                         'value': (1.0, 1.0)}
+                           'tooltip': 'Scaling relation for derived local magnitude [a*Ml+b]',
+                           'value': (1.0, 1.0)},
+            
+            'minfreq': {'type': float,
+                        'tooltip': 'Lower filter frequency',
+                        'value': 1.0},
+            
+            'maxfreq': {'type': float,
+                        'tooltip': 'Upper filter frequency',
+                        'value': 10.0},
+            
+            'filter_order': {'type': int,
+                             'tooltip': 'filter order',
+                             'value': 2},
+            
+            'filter_type': {'type': str,
+                            'tooltip': 'filter type (bandpass, bandstop, lowpass, highpass)',
+                            'value': None}
 }
 
 settings_main={
@@ -309,6 +325,11 @@ settings_main={
     'localmag':[
         'WAscaling',
         'magscaling'],
+    'filter':[
+        'minfreq',
+        'maxfreq',
+        'filter_order',
+        'filter_type'],
     'pick':[
         'extent',
         'pstart',
diff --git a/pylot/core/io/inputs.py b/pylot/core/io/inputs.py
index 3653b828..26e2e233 100644
--- a/pylot/core/io/inputs.py
+++ b/pylot/core/io/inputs.py
@@ -141,7 +141,8 @@ class PylotParameter(object):
         all_names += self.get_main_para_names()['nlloc']
         all_names += self.get_main_para_names()['smoment']
         all_names += self.get_main_para_names()['localmag']
-        all_names += self.get_main_para_names()['pick']        
+        all_names += self.get_main_para_names()['pick']
+        all_names += self.get_main_para_names()['filter']                
         all_names += self.get_special_para_names()['z']
         all_names += self.get_special_para_names()['h']
         all_names += self.get_special_para_names()['fm']
@@ -237,6 +238,8 @@ class PylotParameter(object):
                            'parameters for seismic moment estimation', seperator)
         self.write_section(fid_out, self.get_main_para_names()['localmag'],
                            'settings local magnitude', seperator)
+        self.write_section(fid_out, self.get_main_para_names()['filter'],
+                           'filter settings', seperator)
         self.write_section(fid_out, self.get_main_para_names()['pick'],
                            'common settings picker', seperator)
         fid_out.write(('#special settings for calculating CF#\n'+
diff --git a/pylot/core/util/widgets.py b/pylot/core/util/widgets.py
index 29cabb60..7765b2b3 100644
--- a/pylot/core/util/widgets.py
+++ b/pylot/core/util/widgets.py
@@ -2135,8 +2135,10 @@ class PylotParaBox(QtGui.QWidget):
                            self.parameter.get_main_para_names()['smoment'], 2)
         self.add_to_layout(self._main_layout, 'Local Magnitude',
                            self.parameter.get_main_para_names()['localmag'], 3)
+        self.add_to_layout(self._main_layout, 'Filter Settings',
+                           self.parameter.get_main_para_names()['filter'], 4)
         self.add_to_layout(self._main_layout, 'Common Settings Characteristic Function',
-                           self.parameter.get_main_para_names()['pick'], 4)
+                           self.parameter.get_main_para_names()['pick'], 5)
         self.add_tab(self._main_layout, 'Main Settings')
 
     def add_special_pick_parameters_tab(self):