diff --git a/apps/opencs/model/prefs/state.cpp b/apps/opencs/model/prefs/state.cpp
index 509d977c4..8a9dad7f3 100644
--- a/apps/opencs/model/prefs/state.cpp
+++ b/apps/opencs/model/prefs/state.cpp
@@ -169,19 +169,25 @@ void CSMPrefs::State::declare()
         "list go to the first/last item");
 
     declareCategory ("3D Scene Input");
+    
+    declareDouble ("navi-wheel-factor", "Camera Zoom Sensitivity", 8).setRange(-100.0, 100.0);
+    declareDouble ("s-navi-sensitivity", "Secondary Camera Movement Sensitivity", 50.0).setRange(-1000.0, 1000.0);
+    declareSeparator();
+
     declareDouble ("p-navi-free-sensitivity", "Free Camera Sensitivity", 1/650.).setPrecision(5).setRange(0.0, 1.0);
     declareBool ("p-navi-free-invert", "Invert Free Camera Mouse Input", false);
-    declareDouble ("p-navi-orbit-sensitivity", "Orbit Camera Sensitivity", 1/650.).setPrecision(5).setRange(0.0, 1.0);
-    declareBool ("p-navi-orbit-invert", "Invert Orbit Camera Mouse Input", false);
-    declareDouble ("s-navi-sensitivity", "Secondary Camera Movement Sensitivity", 50.0).setRange(-1000.0, 1000.0);
-    declareDouble ("navi-wheel-factor", "Camera Zoom Sensitivity", 8).setRange(-100.0, 100.0);
     declareDouble ("navi-free-lin-speed", "Free Camera Linear Speed", 1000.0).setRange(1.0, 10000.0);
-    declareDouble ("navi-free-rot-speed", "Free Camera Rotational Speed", 3.14 / 2).setRange(0.001, 6.28);
+    declareDouble ("navi-free-rot-speed", "Free Camera Rotational Speed", 3.14 / 2).setRange(0.001, 6.28);    
     declareDouble ("navi-free-speed-mult", "Free Camera Speed Multiplier (from Modifier)", 8).setRange(0.001, 1000.0);
+    declareSeparator();
+
+    declareDouble ("p-navi-orbit-sensitivity", "Orbit Camera Sensitivity", 1/650.).setPrecision(5).setRange(0.0, 1.0);
+    declareBool ("p-navi-orbit-invert", "Invert Orbit Camera Mouse Input", false);
     declareDouble ("navi-orbit-rot-speed", "Orbital Camera Rotational Speed", 3.14 / 4).setRange(0.001, 6.28);
     declareDouble ("navi-orbit-speed-mult", "Orbital Camera Speed Multiplier (from Modifier)", 4).setRange(0.001, 1000.0);
     declareBool ("navi-orbit-const-roll", "Keep camera roll constant for orbital camera", true);
     declareSeparator();
+
     declareBool ("context-select", "Context Sensitive Selection", false);
     declareDouble ("drag-factor", "Mouse sensitivity during drag operations", 1.0).
         setRange (0.001, 100.0);
@@ -192,12 +198,14 @@ void CSMPrefs::State::declare()
         setTooltip ("Acceleration factor during drag operations while holding down shift").
         setRange (0.001, 100.0);
     declareDouble ("rotate-factor", "Free rotation factor", 0.007).setPrecision(4).setRange(0.0001, 0.1);
-    declareDouble ("object-marker-alpha", "Object Marker Transparency", 0.5).setPrecision(2).setRange(0,1);
 
     declareCategory ("Rendering");
-    declareDouble ("camera-fov", "Camera FOV", 90.).setPrecision(5).setRange(10.0, 160.0);
+    declareInt ("camera-fov", "Camera FOV", 90).setRange(10, 170);
     declareBool ("camera-ortho", "Orthographic projection for camera", false);
-    declareDouble ("camera-ortho-size", "Orthographic projection size parameter", 100.0).setPrecision(5).setRange(0.0, 1000.0);
+    declareInt ("camera-ortho-size", "Orthographic projection size parameter", 100).
+        setTooltip("Size of the orthographic frustum, greater value will allow the camera to see more of the world.").
+        setRange(10, 10000);
+    declareDouble ("object-marker-alpha", "Object Marker Transparency", 0.5).setPrecision(2).setRange(0,1);
 
     declareCategory ("Tooltips");
     declareBool ("scene", "Show Tooltips in 3D scenes", true);
diff --git a/apps/opencs/view/render/object.cpp b/apps/opencs/view/render/object.cpp
index df7283b1a..dae6467c5 100644
--- a/apps/opencs/view/render/object.cpp
+++ b/apps/opencs/view/render/object.cpp
@@ -471,7 +471,7 @@ void CSVRender::Object::setSelected(bool selected)
     else
         mRootNode->addChild(mBaseNode);
 
-    mMarkerTransparency = CSMPrefs::get()["3D Scene Input"]["object-marker-alpha"].toDouble();
+    mMarkerTransparency = CSMPrefs::get()["Rendering"]["object-marker-alpha"].toDouble();
     updateMarker();
 }
 
diff --git a/apps/opencs/view/render/scenewidget.cpp b/apps/opencs/view/render/scenewidget.cpp
index ecf27e04d..f24a9de50 100644
--- a/apps/opencs/view/render/scenewidget.cpp
+++ b/apps/opencs/view/render/scenewidget.cpp
@@ -391,7 +391,7 @@ void RenderWidget::updateCameraParameters(double overrideAspect)
 
     if (CSMPrefs::get()["Rendering"]["camera-ortho"].isTrue())
     {
-        const float size = CSMPrefs::get()["Rendering"]["camera-ortho-size"].toDouble();
+        const float size = CSMPrefs::get()["Rendering"]["camera-ortho-size"].toInt();
         const float aspect = overrideAspect >= 0.0 ? overrideAspect : (width() / static_cast<double>(height()));
         const float halfH = size * 10.0;
         const float halfW = halfH * aspect;
@@ -402,7 +402,7 @@ void RenderWidget::updateCameraParameters(double overrideAspect)
     else
     { 
         mView->getCamera()->setProjectionMatrixAsPerspective(
-            CSMPrefs::get()["Rendering"]["camera-fov"].toDouble(),
+            CSMPrefs::get()["Rendering"]["camera-fov"].toInt(),
             static_cast<double>(width())/static_cast<double>(height()),
             nearDist, farDist);
     }
diff --git a/apps/opencs/view/render/worldspacewidget.cpp b/apps/opencs/view/render/worldspacewidget.cpp
index a80a61a79..af53c86f0 100644
--- a/apps/opencs/view/render/worldspacewidget.cpp
+++ b/apps/opencs/view/render/worldspacewidget.cpp
@@ -131,7 +131,7 @@ void CSVRender::WorldspaceWidget::settingChanged (const CSMPrefs::Setting *setti
         mDragWheelFactor = setting->toDouble();
     else if (*setting=="3D Scene Input/drag-shift-factor")
         mDragShiftFactor = setting->toDouble();
-    else if (*setting=="3D Scene Input/object-marker-alpha" && !mInConstructor)
+    else if (*setting=="Rendering/object-marker-alpha" && !mInConstructor)
     {
         float alpha = setting->toDouble();
         // getSelection is virtual, thus this can not be called from the constructor