diff --git a/rtengine/procparams.cc b/rtengine/procparams.cc
index 95835af30..3cab78aee 100644
--- a/rtengine/procparams.cc
+++ b/rtengine/procparams.cc
@@ -3264,7 +3264,7 @@ LocallabParams::LocallabSpot::LocallabSpot() :
     expreti(false),
     complexreti(0),
     retinexMethod("high"),
-    str(0.15),
+    str(0.),
     chrrt(0.0),
     neigh(50.0),
     vart(150.0),
diff --git a/rtgui/locallabtools2.cc b/rtgui/locallabtools2.cc
index 4c197b27d..81585b8b9 100644
--- a/rtgui/locallabtools2.cc
+++ b/rtgui/locallabtools2.cc
@@ -727,7 +727,7 @@ LocallabRetinex::LocallabRetinex():
     depth(Gtk::manage(new Adjuster(M("TP_LOCALLAB_DEPTH"), 0, 100, 1, 25))),
     lumonly(Gtk::manage(new Gtk::CheckButton(M("TP_LOCALLAB_LUMONLY")))),
     retiFrame(Gtk::manage(new Gtk::Frame(M("TP_LOCALLAB_RETIFRA")))),
-    str(Gtk::manage(new Adjuster(M("TP_LOCALLAB_STR"), 0., 100., 0.05, 0.15))),
+    str(Gtk::manage(new Adjuster(M("TP_LOCALLAB_STR"), 0., 100., 0.2, 0.))),
     loglin(Gtk::manage(new Gtk::CheckButton(M("TP_LOCALLAB_LOGLIN")))),
     sensih(Gtk::manage(new Adjuster(M("TP_LOCALLAB_SENSIH"), 0, 100, 1, 60))),
     retitoolFrame(Gtk::manage(new Gtk::Frame(M("TP_LOCALLAB_RETITOOLFRA")))),