diff --git a/rtdata/dcpprofiles/Canon EOS 1300D.dcp b/rtdata/dcpprofiles/Canon EOS 1300D.dcp
new file mode 100644
index 000000000..e6fa7ac41
Binary files /dev/null and b/rtdata/dcpprofiles/Canon EOS 1300D.dcp differ
diff --git a/rtdata/dcpprofiles/Canon EOS 60D.dcp b/rtdata/dcpprofiles/Canon EOS 60D.dcp
new file mode 100644
index 000000000..24e7e04b6
Binary files /dev/null and b/rtdata/dcpprofiles/Canon EOS 60D.dcp differ
diff --git a/rtdata/dcpprofiles/Canon EOS 6D Mark II.dcp b/rtdata/dcpprofiles/Canon EOS 6D Mark II.dcp
new file mode 100644
index 000000000..69a131bd3
Binary files /dev/null and b/rtdata/dcpprofiles/Canon EOS 6D Mark II.dcp differ
diff --git a/rtdata/dcpprofiles/Panasonic DC-TZ91.dcp b/rtdata/dcpprofiles/Panasonic DC-TZ91.dcp
new file mode 100644
index 000000000..2a3abfaed
Binary files /dev/null and b/rtdata/dcpprofiles/Panasonic DC-TZ91.dcp differ
diff --git a/rtengine/rtthumbnail.cc b/rtengine/rtthumbnail.cc
index 065d4640c..ea0fd9f1c 100644
--- a/rtengine/rtthumbnail.cc
+++ b/rtengine/rtthumbnail.cc
@@ -714,9 +714,8 @@ Thumbnail* Thumbnail::loadFromRaw (const Glib::ustring& fname, RawMetaDataLocati
     double avg_r = 0;
     double avg_g = 0;
     double avg_b = 0;
-    const float eps = 1e-5; //tolerance to avoid dividing by zero
 
-    float rn = eps, gn = eps, bn = eps;
+    unsigned int rn = 0, gn = 0, bn = 0;
 
     for (int i = 32; i < height - 32; i++) {
         int start, end;
@@ -831,9 +830,9 @@ Thumbnail* Thumbnail::loadFromRaw (const Glib::ustring& fname, RawMetaDataLocati
         }
     }
 
-    double reds = avg_r / rn * tpp->camwbRed;
-    double greens = avg_g / gn * tpp->camwbGreen;
-    double blues = avg_b / bn * tpp->camwbBlue;
+    double reds = avg_r / std::max(rn, 1u) * tpp->camwbRed;
+    double greens = avg_g / std::max(gn, 1u) * tpp->camwbGreen;
+    double blues = avg_b / std::max(bn, 1u) * tpp->camwbBlue;
 
     tpp->redAWBMul   = ri->get_rgb_cam (0, 0) * reds + ri->get_rgb_cam (0, 1) * greens + ri->get_rgb_cam (0, 2) * blues;
     tpp->greenAWBMul = ri->get_rgb_cam (1, 0) * reds + ri->get_rgb_cam (1, 1) * greens + ri->get_rgb_cam (1, 2) * blues;
diff --git a/rtgui/filebrowser.cc b/rtgui/filebrowser.cc
index 10d4809ed..b9c5baafb 100644
--- a/rtgui/filebrowser.cc
+++ b/rtgui/filebrowser.cc
@@ -975,15 +975,11 @@ void FileBrowser::menuItemActivated (Gtk::MenuItem* m)
             bppcl->endBatchPParamsChange();
         }
     } else if (m == clearFromCache) {
-        for (size_t i = 0; i < mselected.size(); i++) {
-            tbl->clearFromCacheRequested (mselected, false);
-        }
+        tbl->clearFromCacheRequested (mselected, false);
 
         //queue_draw ();
     } else if (m == clearFromCacheFull) {
-        for (size_t i = 0; i < mselected.size(); i++) {
-            tbl->clearFromCacheRequested (mselected, true);
-        }
+        tbl->clearFromCacheRequested (mselected, true);
 
         //queue_draw ();
     } else if (miOpenDefaultViewer != nullptr && m == miOpenDefaultViewer) {