diff --git a/script/camtool.py b/script/camtool.py
index d848d5f..760fa8c 100644
--- a/script/camtool.py
+++ b/script/camtool.py
@@ -174,9 +174,9 @@ class CamTool(DeviceBase):
     def captureBackground(self, images):        
         self.start()
         self.bg_capture.write(images)
-        sleep(0.1)
+        sleep(2.0)
         while( self.bg_capture_remain.read() > 0):
-            time.sleep(0.001)                
+            time.sleep(0.1)                
         #self.stop()        
         #self.bg_capture.write(images)
         #while( self.bg_capture_remain.read() > 0):