diff --git a/rtgui/locallabtools.cc b/rtgui/locallabtools.cc
index 469e1f64b..0242e0a89 100644
--- a/rtgui/locallabtools.cc
+++ b/rtgui/locallabtools.cc
@@ -449,7 +449,7 @@ LocallabColor::LocallabColor():
     contcol(Gtk::manage(new Adjuster(M("TP_LOCALLAB_CONTCOL"), 0., 200., 0.5, 0.))),
     blurcol(Gtk::manage(new Adjuster(M("TP_LOCALLAB_BLURCOL"), 0.2, 100., 0.5, 0.2))),
     blendmaskcol(Gtk::manage(new Adjuster(M("TP_LOCALLAB_BLENDMASKCOL"), -100, 100, 1, 0))),
-    radmaskcol(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), -10.0, 100.0, 0.1, 0.))),
+    radmaskcol(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), 0.0, 100.0, 0.1, 0.))),
     lapmaskcol(Gtk::manage(new Adjuster(M("TP_LOCALLAB_LAPMASKCOL"), 0.0, 100.0, 0.1, 0.))),
     chromaskcol(Gtk::manage(new Adjuster(M("TP_LOCALLAB_CHROMASKCOL"), -100.0, 100.0, 0.1, 0.))),
     gammaskcol(Gtk::manage(new Adjuster(M("TP_LOCALLAB_GAMMASKCOL"), 0.25, 4.0, 0.01, 1.))),
@@ -685,7 +685,7 @@ LocallabColor::LocallabColor():
 
     blendmaskcol->setAdjusterListener(this);
 
-    radmaskcol->setLogScale(10, -10);
+   // radmaskcol->setLogScale(10, -10);
     radmaskcol->setAdjusterListener(this);
 
     lapmaskcol->setAdjusterListener(this);
@@ -2213,7 +2213,7 @@ LocallabExposure::LocallabExposure():
     LLmaskexpshape(static_cast<FlatCurveEditor*>(maskexpCurveEditorG->addCurve(CT_Flat, "L(L)", nullptr, false, false))),
     HHmaskexpshape(static_cast<FlatCurveEditor *>(maskexpCurveEditorG->addCurve(CT_Flat, "LC(H)", nullptr, false, true))),
     blendmaskexp(Gtk::manage(new Adjuster(M("TP_LOCALLAB_BLENDMASKCOL"), -100, 100, 1, 0))),
-    radmaskexp(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), -10.0, 100.0, 0.1, 0.))),
+    radmaskexp(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), 0.0, 100.0, 0.1, 0.))),
     lapmaskexp(Gtk::manage(new Adjuster(M("TP_LOCALLAB_LAPMASKCOL"), 0.0, 100.0, 0.1, 0.))),
     chromaskexp(Gtk::manage(new Adjuster(M("TP_LOCALLAB_CHROMASKCOL"), -100.0, 100.0, 0.1, 0.))),
     gammaskexp(Gtk::manage(new Adjuster(M("TP_LOCALLAB_GAMMASKCOL"), 0.25, 4.0, 0.01, 1.))),
@@ -2342,7 +2342,7 @@ LocallabExposure::LocallabExposure():
 
     blendmaskexp->setAdjusterListener(this);
 
-    radmaskexp->setLogScale(10, -10);
+    //radmaskexp->setLogScale(10, -10);
     radmaskexp->setAdjusterListener(this);
 
     lapmaskexp->setAdjusterListener(this);
@@ -3304,7 +3304,7 @@ LocallabShadow::LocallabShadow():
     LLmaskSHshape(static_cast<FlatCurveEditor*>(maskSHCurveEditorG->addCurve(CT_Flat, "L(L)", nullptr, false, false))),
     HHmaskSHshape(static_cast<FlatCurveEditor*>(maskSHCurveEditorG->addCurve(CT_Flat, "LC(H)", nullptr, false, true))),
     blendmaskSH(Gtk::manage(new Adjuster(M("TP_LOCALLAB_BLENDMASKCOL"), -100, 100, 1, 0))),
-    radmaskSH(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), -10.0, 100.0, 0.1, 0.))),
+    radmaskSH(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), 0.0, 100.0, 0.1, 0.))),
     lapmaskSH(Gtk::manage(new Adjuster(M("TP_LOCALLAB_LAPMASKCOL"), 0.0, 100.0, 0.1, 0.))),
     chromaskSH(Gtk::manage(new Adjuster(M("TP_LOCALLAB_CHROMASKCOL"), -100.0, 100.0, 0.1, 0.))),
     gammaskSH(Gtk::manage(new Adjuster(M("TP_LOCALLAB_GAMMASKCOL"), 0.25, 4.0, 0.01, 1.))),
@@ -3395,7 +3395,7 @@ LocallabShadow::LocallabShadow():
 
     blendmaskSH->setAdjusterListener(this);
 
-    radmaskSH->setLogScale(10, -10);
+    //radmaskSH->setLogScale(10, -10);
     radmaskSH->setAdjusterListener(this);
 
     lapmaskSH->setAdjusterListener(this);
@@ -4149,7 +4149,7 @@ LocallabVibrance::LocallabVibrance():
     LLmaskvibshape(static_cast<FlatCurveEditor*>(maskvibCurveEditorG->addCurve(CT_Flat, "L(L)", nullptr, false, false))),
     HHmaskvibshape(static_cast<FlatCurveEditor *>(maskvibCurveEditorG->addCurve(CT_Flat, "LC(H)", nullptr, false, true))),
     blendmaskvib(Gtk::manage(new Adjuster(M("TP_LOCALLAB_BLENDMASKCOL"), -100, 100, 1, 0))),
-    radmaskvib(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), -10.0, 100.0, 0.1, 0.))),
+    radmaskvib(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), 0.0, 100.0, 0.1, 0.))),
     lapmaskvib(Gtk::manage(new Adjuster(M("TP_LOCALLAB_LAPMASKCOL"), 0.0, 100.0, 0.1, 0.))),
     chromaskvib(Gtk::manage(new Adjuster(M("TP_LOCALLAB_CHROMASKCOL"), -100.0, 100.0, 0.1, 0.))),
     gammaskvib(Gtk::manage(new Adjuster(M("TP_LOCALLAB_GAMMASKCOL"), 0.25, 4.0, 0.01, 1.))),
@@ -4243,7 +4243,7 @@ LocallabVibrance::LocallabVibrance():
 
     blendmaskvib->setAdjusterListener(this);
 
-    radmaskvib->setLogScale(10, -10);
+    //radmaskvib->setLogScale(10, -10);
     radmaskvib->setAdjusterListener(this);
 
     lapmaskvib->setAdjusterListener(this);
@@ -5228,7 +5228,7 @@ LocallabBlur::LocallabBlur():
     strumaskbl(Gtk::manage(new Adjuster(M("TP_LOCALLAB_STRUMASKCOL"), 0., 200., 0.1, 0.))),
     toolbl(Gtk::manage(new Gtk::CheckButton(M("TP_LOCALLAB_TOOLCOL")))),
     blendmaskbl(Gtk::manage(new Adjuster(M("TP_LOCALLAB_BLENDMASKCOL"), -100, 100, 1, 0))),
-    radmaskbl(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), -10.0, 100.0, 0.1, 0.))),
+    radmaskbl(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), 0.0, 100.0, 0.1, 0.))),
     lapmaskbl(Gtk::manage(new Adjuster(M("TP_LOCALLAB_LAPMASKCOL"), 0.0, 100.0, 0.1, 0.))),
     chromaskbl(Gtk::manage(new Adjuster(M("TP_LOCALLAB_CHROMASKCOL"), -100.0, 100.0, 0.1, 0.))),
     gammaskbl(Gtk::manage(new Adjuster(M("TP_LOCALLAB_GAMMASKCOL"), 0.05, 5.0, 0.01, 1.))),
diff --git a/rtgui/locallabtools2.cc b/rtgui/locallabtools2.cc
index 14659376e..9bbf5e50e 100644
--- a/rtgui/locallabtools2.cc
+++ b/rtgui/locallabtools2.cc
@@ -138,7 +138,7 @@ LocallabTone::LocallabTone():
     HHmasktmshape(static_cast<FlatCurveEditor *>(masktmCurveEditorG->addCurve(CT_Flat, "LC(H)", nullptr, false, true))),
     blendmasktm(Gtk::manage(new Adjuster(M("TP_LOCALLAB_BLENDMASKCOL"), -100, 100, 1, 0))),
     lapmasktm(Gtk::manage(new Adjuster(M("TP_LOCALLAB_LAPMASKCOL"), 0.0, 100.0, 0.1, 0.))),
-    radmasktm(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), -10.0, 100.0, 0.1, 0.))),
+    radmasktm(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), 0.0, 100.0, 0.1, 0.))),
     chromasktm(Gtk::manage(new Adjuster(M("TP_LOCALLAB_CHROMASKCOL"), -100.0, 100.0, 0.1, 0.))),
     gammasktm(Gtk::manage(new Adjuster(M("TP_LOCALLAB_GAMMASKCOL"), 0.05, 5.0, 0.01, 1.))),
     slomasktm(Gtk::manage(new Adjuster(M("TP_LOCALLAB_SLOMASKCOL"), 0.0, 15.0, 0.1, 0.))),
@@ -205,7 +205,7 @@ LocallabTone::LocallabTone():
 
     lapmasktm->setAdjusterListener(this);
 
-    radmasktm->setLogScale(10, -10);
+    //radmasktm->setLogScale(10, -10);
     radmasktm->setAdjusterListener(this);
 
     chromasktm->setAdjusterListener(this);
@@ -765,7 +765,7 @@ LocallabRetinex::LocallabRetinex():
     LLmaskretishape(static_cast<FlatCurveEditor*>(maskretiCurveEditorG->addCurve(CT_Flat, "L(L)", nullptr, false, false))),
     HHmaskretishape(static_cast<FlatCurveEditor *>(maskretiCurveEditorG->addCurve(CT_Flat, "LC(H)", nullptr, false, true))),
     blendmaskreti(Gtk::manage(new Adjuster(M("TP_LOCALLAB_BLENDMASKCOL"), -100, 100, 1, 0))),
-    radmaskreti(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), -10.0, 100.0, 0.1, 10.))),
+    radmaskreti(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), 0.0, 100.0, 0.1, 10.))),
     lapmaskreti(Gtk::manage(new Adjuster(M("TP_LOCALLAB_LAPMASKCOL"), 0.0, 100.0, 0.1, 0.))),
     chromaskreti(Gtk::manage(new Adjuster(M("TP_LOCALLAB_CHROMASKCOL"), -100.0, 100.0, 0.1, 0.))),
     gammaskreti(Gtk::manage(new Adjuster(M("TP_LOCALLAB_GAMMASKCOL"), 0.05, 5.0, 0.01, 1.))),
@@ -2149,7 +2149,7 @@ LocallabContrast::LocallabContrast():
     LLmasklcshape(static_cast<FlatCurveEditor*>(masklcCurveEditorG->addCurve(CT_Flat, "L(L)", nullptr, false, false))),
     HHmasklcshape(static_cast<FlatCurveEditor *>(masklcCurveEditorG->addCurve(CT_Flat, "LC(H)", nullptr, false, true))),
     blendmasklc(Gtk::manage(new Adjuster(M("TP_LOCALLAB_BLENDMASKCOL"), -100, 100, 1, 0))),
-    radmasklc(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), -10.0, 100.0, 0.1, 0.))),
+    radmasklc(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), 0.0, 100.0, 0.1, 0.))),
     chromasklc(Gtk::manage(new Adjuster(M("TP_LOCALLAB_CHROMASKCOL"), -100.0, 100.0, 0.1, 0.))),
     mask2lcCurveEditorG(new CurveEditorGroup(options.lastlocalCurvesDir, M("TP_LOCALLAB_MASK2"))),
     Lmasklcshape(static_cast<DiagonalCurveEditor*>(mask2lcCurveEditorG->addCurve(CT_Diagonal, "L(L)")))
@@ -2382,7 +2382,7 @@ LocallabContrast::LocallabContrast():
 
     blendmasklc->setAdjusterListener(this);
 
-    radmasklc->setLogScale(10, -10);
+   // radmasklc->setLogScale(10, -10);
     radmasklc->setAdjusterListener(this);
 
     chromasklc->setAdjusterListener(this);
@@ -3744,7 +3744,7 @@ LocallabCBDL::LocallabCBDL():
     LLmaskcbshape(static_cast<FlatCurveEditor*>(maskcbCurveEditorG->addCurve(CT_Flat, "L(L)", nullptr, false, false))),
     HHmaskcbshape(static_cast<FlatCurveEditor *>(maskcbCurveEditorG->addCurve(CT_Flat, "LC(H)", nullptr, false, true))),
     blendmaskcb(Gtk::manage(new Adjuster(M("TP_LOCALLAB_BLENDMASKCOL"), -100, 100, 1, 0))),
-    radmaskcb(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), -10.0, 100.0, 0.1, 0.))),
+    radmaskcb(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), 0.0, 100.0, 0.1, 0.))),
     lapmaskcb(Gtk::manage(new Adjuster(M("TP_LOCALLAB_LAPMASKCOL"), 0.0, 100.0, 0.1, 0.))),
     chromaskcb(Gtk::manage(new Adjuster(M("TP_LOCALLAB_CHROMASKCOL"), -100.0, 100.0, 0.1, 0.))),
     gammaskcb(Gtk::manage(new Adjuster(M("TP_LOCALLAB_GAMMASKCOL"), 0.25, 4.0, 0.01, 1.))),
@@ -3808,7 +3808,7 @@ LocallabCBDL::LocallabCBDL():
 
     blendmaskcb->setAdjusterListener(this);
 
-    radmaskcb->setLogScale(10, -10);
+  //  radmaskcb->setLogScale(10, -10);
     radmaskcb->setAdjusterListener(this);
 
     lapmaskcb->setAdjusterListener(this);