diff --git a/rtengine/procparams.cc b/rtengine/procparams.cc
index 7ea6cde89..66ec95515 100644
--- a/rtengine/procparams.cc
+++ b/rtengine/procparams.cc
@@ -740,8 +740,8 @@ int ProcParams::save (Glib::ustring fname, Glib::ustring fname2, ParamsEdited* p
     if (!pedited || pedited->lensProf.useCA)         keyFile.set_boolean  ("LensProfile", "UseCA", lensProf.useCA);
 
     // save perspective correction
-    if (!pedited || pedited->perspective.horizontal) keyFile.set_integer  ("Perspective", "Horizontal", perspective.horizontal);
-    if (!pedited || pedited->perspective.vertical)   keyFile.set_integer  ("Perspective", "Vertical",   perspective.vertical);
+    if (!pedited || pedited->perspective.horizontal) keyFile.set_double  ("Perspective", "Horizontal", perspective.horizontal);
+    if (!pedited || pedited->perspective.vertical)   keyFile.set_double  ("Perspective", "Vertical",   perspective.vertical);
 
     // save C/A correction
     if (!pedited || pedited->cacorrection.red)       keyFile.set_double  ("CACorrection", "Red",  cacorrection.red);
@@ -1270,8 +1270,8 @@ if (keyFile.has_group ("LensProfile")) {
     
     // load perspective correction
 if (keyFile.has_group ("Perspective")) {
-    if (keyFile.has_key ("Perspective", "Horizontal"))  { perspective.horizontal = keyFile.get_integer ("Perspective", "Horizontal"); if (pedited) pedited->perspective.horizontal = true; }
-    if (keyFile.has_key ("Perspective", "Vertical"))    { perspective.vertical   = keyFile.get_integer ("Perspective", "Vertical"); if (pedited) pedited->perspective.vertical = true; }
+    if (keyFile.has_key ("Perspective", "Horizontal"))  { perspective.horizontal = keyFile.get_double ("Perspective", "Horizontal"); if (pedited) pedited->perspective.horizontal = true; }
+    if (keyFile.has_key ("Perspective", "Vertical"))    { perspective.vertical   = keyFile.get_double ("Perspective", "Vertical"); if (pedited) pedited->perspective.vertical = true; }
 }
 
 // load c/a correction
diff --git a/rtengine/procparams.h b/rtengine/procparams.h
index e9a1bf627..8316e8a13 100644
--- a/rtengine/procparams.h
+++ b/rtengine/procparams.h
@@ -565,8 +565,8 @@ public:
 class PerspectiveParams {
 
     public:
-		int  horizontal;
-		int  vertical;
+		double  horizontal;
+		double  vertical;
 };
 
 /**
diff --git a/rtgui/perspective.cc b/rtgui/perspective.cc
index 3fb096ae9..dc14b875f 100644
--- a/rtgui/perspective.cc
+++ b/rtgui/perspective.cc
@@ -25,10 +25,10 @@ PerspCorrection::PerspCorrection () : Gtk::VBox(), FoldableToolPanel(this) {
 
 	set_border_width(4);
 
-	horiz = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_HORIZONTAL"), -100, 100, 1, 0));
+	horiz = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_HORIZONTAL"), -100, 100, 0.1, 0));
 	horiz->setAdjusterListener (this);
 
-	vert = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_VERTICAL"), -100, 100, 1, 0));
+	vert = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_VERTICAL"), -100, 100, 0.1, 0));
 	vert->setAdjusterListener (this);
 
     pack_start (*horiz);
diff --git a/rtgui/ppversion.h b/rtgui/ppversion.h
index 3ec84e754..8f40bda20 100644
--- a/rtgui/ppversion.h
+++ b/rtgui/ppversion.h
@@ -2,7 +2,14 @@
 #define _PPVERSION_
 
 // This number have to be incremented whenever the PP3 file format is modified
-#define PPVERSION 306
+#define PPVERSION 307
 #define PPVERSION_AEXP 301 //value of PPVERSION when auto exposure algorithm was modified
 
+/* Log of version changes
+ * 307	2013-03-16
+ * 		[Perspective] Horizontal and Vertical changed from int to double
+ * 		added  [Directional Pyramid Denoising] Method, Redchro, Bluechro
+ * 		added [RGB Curves] LumaMode
+ */
+
 #endif