diff --git a/src/MainWindow.py b/src/MainWindow.py
index aa7326a..7911be1 100644
--- a/src/MainWindow.py
+++ b/src/MainWindow.py
@@ -433,9 +433,11 @@ class MainWindow(QMainWindow):
 
         # Zoom-Slider verbinden
         self.ui.zoom.valueChanged.connect(self.apply_zoom)
+        self.ui.zoom.mouseDoubleClickEvent = lambda event: self.ui.zoom.setValue(100)
 
         # Alpha-Slider verbinden
         self.ui.alpha.valueChanged.connect(self.on_alpha_changed)
+        self.ui.alpha.mouseDoubleClickEvent = lambda event: self.ui.alpha.setValue(0)
 
     def on_alpha_changed(self, alpha_value):
         """