Index: mitk/Core/Code/Controllers/mitkRenderingManager.cpp
===================================================================
--- mitk/Core/Code/Controllers/mitkRenderingManager.cpp	(revision 21850)
+++ mitk/Core/Code/Controllers/mitkRenderingManager.cpp	(working copy)
@@ -939,6 +939,7 @@
     m_PropertyList = PropertyList::New();
   }
 
+  this->SetProperty("zoom-factor", DoubleProperty::New(1.05));
   this->SetProperty("coupled-zoom", BoolProperty::New(false));
   this->SetProperty("coupled-plane-rotation", BoolProperty::New(false));
   this->SetProperty("MIP-slice-rendering", BoolProperty::New(false));
Index: mitk/Core/Code/Interactions/mitkDisplayInteractor.cpp
===================================================================
--- mitk/Core/Code/Interactions/mitkDisplayInteractor.cpp	(revision 21850)
+++ mitk/Core/Code/Interactions/mitkDisplayInteractor.cpp	(working copy)
@@ -29,6 +29,8 @@
 
 #include <mitkInteractionConst.h>
 
+#include "mitkProperties.h"
+
 mitk::DisplayInteractor::DisplayInteractor(mitk::BaseRenderer * ren)
 {
   m_ParentRenderer = ren;
@@ -62,14 +64,27 @@
         //float factor= 1.0 + distance * 0.05; // stupid because factors from +1 and -1 dont give results that represent inverse zooms
 
         float factor = 1.0;
+        
+        mitk::DoubleProperty* doubleProperty = dynamic_cast<mitk::DoubleProperty*>(mitk::RenderingManager::GetInstance()->GetProperty("zoom-factor")); 
+        double zoomFactorFromManager( 1.05 );
+        if (doubleProperty != NULL)
+        {
+          zoomFactorFromManager = doubleProperty->GetValue();
+        }
 
+        if(zoomFactorFromManager == 0.0)
+        {
+          zoomFactorFromManager = 1.05;
+        }
+        
         if (distance < 0.0)
         {
-          factor = 1.0 / 1.05;
+          
+          factor = 1.0 / zoomFactorFromManager;
         }
         else if (distance > 0.0)
         {
-          factor = 1.0 * 1.05; // 5%
+          factor = 1.0 * zoomFactorFromManager; // 5%
         }
         else // distance == 0.0
         {
Index: mitk/CoreUI/Bundles/org.mitk.gui.qt.common/files.cmake
===================================================================
--- mitk/CoreUI/Bundles/org.mitk.gui.qt.common/files.cmake	(revision 21850)
+++ mitk/CoreUI/Bundles/org.mitk.gui.qt.common/files.cmake	(working copy)
@@ -24,6 +24,7 @@
   src/QmitkFileExitAction.h
   src/QmitkProgressBar.h
   src/QmitkPreferencesDialog.h
+  src/QmitkGeneralPreferencePage.h
   src/QmitkDnDFrameWidget.h
 )
 
Index: mitk/CoreUI/Bundles/org.mitk.gui.qt.common/manifest.cpp
===================================================================
--- mitk/CoreUI/Bundles/org.mitk.gui.qt.common/manifest.cpp	(revision 21850)
+++ mitk/CoreUI/Bundles/org.mitk.gui.qt.common/manifest.cpp	(working copy)
@@ -23,6 +23,7 @@
 #include "src/QmitkStdMultiWidgetEditor.h"
 #include "src/internal/QmitkCommonActivator.h"
 #include "src/QmitkGeneralPreferencePage.h"
+#include "src/QmitkGeneralPreferencePage.h"
 
 POCO_BEGIN_NAMED_MANIFEST(berryIEditorPart, berry::IEditorPart)
   POCO_EXPORT_CLASS(QmitkStdMultiWidgetEditor)
@@ -35,3 +36,7 @@
 POCO_BEGIN_NAMED_MANIFEST(berryIPreferencePage, berry::IPreferencePage)
   POCO_EXPORT_CLASS(QmitkGeneralPreferencePage)
 POCO_END_MANIFEST
+
+POCO_BEGIN_NAMED_MANIFEST(berryIQtPreferencePage, berry::IQtPreferencePage)
+POCO_EXPORT_CLASS(QmitkGeneralPreferencePage)
+POCO_END_MANIFEST
\ No newline at end of file
Index: mitk/CoreUI/Bundles/org.mitk.gui.qt.common/plugin.xml
===================================================================
--- mitk/CoreUI/Bundles/org.mitk.gui.qt.common/plugin.xml	(revision 21850)
+++ mitk/CoreUI/Bundles/org.mitk.gui.qt.common/plugin.xml	(working copy)
@@ -8,4 +8,14 @@
       class="QmitkStdMultiWidgetEditor">
     </editor>
   </extension>
+  
+  <extension point="org.blueberry.ui.preferencePages">
+    <page id="org.mitk.gui.qt.common.QmitkGeneralPreferencePage" name="General" class="QmitkGeneralPreferencePage">
+      <keywordreference id="org.mitk.gui.qt.common.QmitkGeneralPreferencePageKeywords"></keywordreference>
+    </page>
+  </extension>
+
+   <extension point="org.blueberry.ui.keywords">
+    <keyword id="org.mitk.gui.qt.common.QmitkGeneralPreferencePageKeywords" label="zoom factor"></keyword>
+  </extension>
 </plugin>
Index: mitk/CoreUI/Bundles/org.mitk.gui.qt.common/src/QmitkGeneralPreferencePage.cpp
===================================================================
--- mitk/CoreUI/Bundles/org.mitk.gui.qt.common/src/QmitkGeneralPreferencePage.cpp	(revision 21850)
+++ mitk/CoreUI/Bundles/org.mitk.gui.qt.common/src/QmitkGeneralPreferencePage.cpp	(working copy)
@@ -25,6 +25,8 @@
 #include <QGridLayout>
 #include <QSpacerItem>
 
+#include "mitkRenderingManager.h"
+
 using namespace berry;
 
 QmitkGeneralPreferencePage::QmitkGeneralPreferencePage()
@@ -47,7 +49,24 @@
 //   m_StartMaximized = new QCheckBox("Start Main Window &Maximized", this);
 
   m_MainControl = new QWidget(parent);
-  QGridLayout* layout = new QGridLayout;
+  QVBoxLayout* layout = new QVBoxLayout;
+
+  QWidget* zoomWidget = new QWidget();
+  layout->addWidget(zoomWidget);
+  layout->insertStretch(1);
+  
+  QHBoxLayout* hLayout = new QHBoxLayout(zoomWidget);
+  
+  hLayout->addWidget(new QLabel("Zoom factor: ", parent));
+  hLayout->addWidget(new QLabel("slow", parent));
+  zoomSlider = new QSlider( Qt::Orientation::Horizontal, parent);
+  zoomSlider->setRange(1, 50);
+  zoomSlider->setTickInterval(5);
+  zoomSlider->setValue(5);
+  hLayout->addWidget(zoomSlider);
+  hLayout->addWidget(new QLabel("fast", parent));
+  hLayout->insertStretch(4);
+
 //   layout->addWidget(m_StartMaximized, 0,0);
 //   layout->setRowStretch(0, 0);
 //   layout->setRowStretch(1, 20);
@@ -70,7 +89,14 @@
 //     _GeneralPreferencesNode->Flush();
 //     return true;
 //   }
-  return false;
+
+  double zoomFactorValue(1.05);
+  zoomFactorValue = 1 + (double)((double)zoomSlider->value() / 100.0);
+
+  mitk::DoubleProperty::Pointer doubleProperty = mitk::DoubleProperty::New(zoomFactorValue);
+  mitk::RenderingManager::GetInstance()->SetProperty("zoom-factor", doubleProperty); 
+
+  return true;
 }
 
 void QmitkGeneralPreferencePage::PerformCancel()
Index: mitk/CoreUI/Bundles/org.mitk.gui.qt.common/src/QmitkGeneralPreferencePage.h
===================================================================
--- mitk/CoreUI/Bundles/org.mitk.gui.qt.common/src/QmitkGeneralPreferencePage.h	(revision 21850)
+++ mitk/CoreUI/Bundles/org.mitk.gui.qt.common/src/QmitkGeneralPreferencePage.h	(working copy)
@@ -32,6 +32,8 @@
 
 //class QCheckBox;
 
+#include <QSlider>
+
 struct MITK_QT_COMMON QmitkGeneralPreferencePage : public berry::IQtPreferencePage
 {
 
@@ -74,6 +76,8 @@
 
   QWidget* m_MainControl;
 
+  QSlider* zoomSlider;
+
 };
 
 #endif /* QMITKGENERALPREFERENCEPAGE_H_ */