diff --git a/rtengine/iptransform.cc b/rtengine/iptransform.cc
index ef175a511..43284a257 100644
--- a/rtengine/iptransform.cc
+++ b/rtengine/iptransform.cc
@@ -525,10 +525,10 @@ void ImProcFunctions::transformLuminanceOnly (Imagefloat* original, Imagefloat*
 	for (int y=0; y<transformed->height; y++) {
 		double vig_y_d = (double) (y + cy) - vig_h2 ;
 		for (int x=0; x<transformed->width; x++) {
-			double vig_x_d = (double) (x + cx) - vig_w2 ;
-			double r = sqrt(vig_x_d*vig_x_d + vig_y_d*vig_y_d);
 			double factor = 1.0;
 			if (applyVignetting) {
+				double vig_x_d = (double) (x + cx) - vig_w2 ;
+				double r = sqrt(vig_x_d*vig_x_d + vig_y_d*vig_y_d);
 				if(darkening)
 					factor /= std::max(v + mul * tanh (b*(maxRadius-r) / maxRadius), 0.001);
 				else
diff --git a/rtexif/sonyminoltaattribs.cc b/rtexif/sonyminoltaattribs.cc
index 7c0059186..bfcb7d35c 100644
--- a/rtexif/sonyminoltaattribs.cc
+++ b/rtexif/sonyminoltaattribs.cc
@@ -860,7 +860,10 @@ class SALensIDInterpreter : public IntLensInterpreter< int > {
             double *liArray = NULL;
             if (lensInfoTag)
                 liArray = lensInfoTag->toDoubleArray();
-            return guess( lensID, focalLength, maxApertureAtFocal, liArray);
+            std::string retval = guess( lensID, focalLength, maxApertureAtFocal, liArray);
+            if(liArray)
+				delete [] liArray;
+            return retval;
         }
 };
 SALensIDInterpreter saLensIDInterpreter;
diff --git a/rtgui/options.h b/rtgui/options.h
index 53b5e7e5f..842d4fc9c 100644
--- a/rtgui/options.h
+++ b/rtgui/options.h
@@ -38,18 +38,19 @@
 // Profile name to use for internal values' profile
 #define DEFPROFILE_INTERNAL "Neutral"
 
-class SaveFormat {
-
-    public:
-        Glib::ustring format;
-        int pngBits;
-        int pngCompression;
-        int jpegQuality;
-        int jpegSubSamp;  // 1=best compression, 3=best quality
-        int tiffBits;
-        bool tiffUncompressed;
-        bool saveParams;
-};
+class SaveFormat {
+
+    public:
+        Glib::ustring format;
+        int pngBits;
+        int pngCompression;
+        int jpegQuality;
+        int jpegSubSamp;  // 1=best compression, 3=best quality
+        int tiffBits;
+        bool tiffUncompressed;
+        bool saveParams;
+        SaveFormat () : format("jpg"), jpegQuality(90), jpegSubSamp(2), pngCompression(6), pngBits(8), tiffBits(8), tiffUncompressed(true), saveParams(true) {};
+};
 
 enum ThFileType {FT_Invalid=-1, FT_None=0, FT_Raw=1, FT_Jpeg=2, FT_Tiff=3, FT_Png=4, FT_Custom=5, FT_Tiff16=6, FT_Png16=7, FT_Custom16=8}; 
 enum PPLoadLocation {PLL_Cache=0, PLL_Input=1};