Increased waiting time on 'no focus' to avoid nasty canon bug

camera.py

@@ -51,7 +51,8 @@ class Camera_gPhoto:
             if "ERROR" in output:
                 raise subprocess.CalledProcessError(returncode=0, cmd=cmd, output=output)
         except subprocess.CalledProcessError as e:
-            if "Canon EOS Capture failed: 2019" in e.output:
+            if "Canon EOS Capture failed: 2019" in e.output or
+               "Perhaps no focus" in e.output:
                 raise CameraException("Can't focus!\nMove a little bit!", True)
             elif "No camera found" in e.output:
                 raise CameraException("No (supported) camera detected!", False)

photobooth.py

@@ -320,7 +320,7 @@ class Photobooth:
                             self.display.clear()
                             self.display.show_message(e.message)  
                             self.display.apply()
-                            sleep(3)
+                            sleep(5)
                         else:
                             raise CameraException("Giving up! Please start again!", False)
                     else: