diff --git a/rtengine/iplocallab.cc b/rtengine/iplocallab.cc
index 1f3be839a..32fa07612 100644
--- a/rtengine/iplocallab.cc
+++ b/rtengine/iplocallab.cc
@@ -14562,7 +14562,10 @@ void ImProcFunctions::Lab_Local(
                 const float rad = params->locallab.spots.at(sp).radmask; 
                 const float gamma = params->locallab.spots.at(sp).gammask; 
                 const float slope =  params->locallab.spots.at(sp).slopmask;
-                const float blendm =  params->locallab.spots.at(sp).blendmask;
+                float blendm =  params->locallab.spots.at(sp).blendmask;
+                if (lp.showmask_met == 2) {
+                    blendm = 0.f;//normalize behavior mask with others no action of blend
+                }
                 const float lap = params->locallab.spots.at(sp).lapmask;
                 const bool pde = params->locallab.spots.at(sp).laplac;
                 const int shado = params->locallab.spots.at(sp).shadmask;
diff --git a/rtgui/locallabtools2.cc b/rtgui/locallabtools2.cc
index 288e46c48..14659376e 100644
--- a/rtgui/locallabtools2.cc
+++ b/rtgui/locallabtools2.cc
@@ -4732,7 +4732,7 @@ LocallabMask::LocallabMask():
     // Comon mask specific widgets
     sensimask(Gtk::manage(new Adjuster(M("TP_LOCALLAB_SENSI"), 0, 100, 1, 60))),
     blendmask(Gtk::manage(new Adjuster(M("TP_LOCALLAB_BLENDMASKMAK"), -100, 100, 1, -10))),
-    softradiusmask(Gtk::manage(new Adjuster(M("TP_LOCALLAB_SOFTRADIUSCOL"), -10.0, 100.0, 0.5, 1.))),
+    softradiusmask(Gtk::manage(new Adjuster(M("TP_LOCALLAB_SOFTRADIUSCOL"), 0.0, 100.0, 0.5, 1.))),
 
     showmask_Method(Gtk::manage(new MyComboBoxText())),
     enamask(Gtk::manage(new Gtk::CheckButton(M("TP_LOCALLAB_ENABLE_MASK")))),
@@ -4749,7 +4749,7 @@ LocallabMask::LocallabMask():
     contmask(Gtk::manage(new Adjuster(M("TP_LOCALLAB_CONTCOL"), 0., 200., 0.5, 0.))),
     blurmask(Gtk::manage(new Adjuster(M("TP_LOCALLAB_BLURCOL"), 0.2, 100., 0.5, 0.2))),
   
-    radmask(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), -10.0, 100.0, 0.1, 0.))),
+    radmask(Gtk::manage(new Adjuster(M("TP_LOCALLAB_RADMASKCOL"), 0.0, 100.0, 0.1, 0.))),
     lapmask(Gtk::manage(new Adjuster(M("TP_LOCALLAB_LAPMASKCOL"), 0.0, 100.0, 0.1, 0.))),
     chromask(Gtk::manage(new Adjuster(M("TP_LOCALLAB_CHROMASKCOL"), -100.0, 100.0, 0.1, 0.))),
     gammask(Gtk::manage(new Adjuster(M("TP_LOCALLAB_GAMMASKCOL"), 0.25, 4.0, 0.01, 1.))),