diff --git a/scripts/focus.py b/scripts/focus.py
index 79185fc..ab6bdcd 100644
--- a/scripts/focus.py
+++ b/scripts/focus.py
@@ -1,43 +1,28 @@
 #!/usr/bin/env python
 
-#Focusing up for 345 micro steps : 
-#python3.7 path/to/file/focus.py 345 up
-
 from adafruit_motor import stepper
 from adafruit_motorkit import MotorKit
 from time import sleep
-
 import sys
 
 nb_step = int(sys.argv[1])
 orientation = str(sys.argv[2])
 
-
-
 kit = MotorKit()
-
 stage = kit.stepper2
-
 stage.release()
 
-def focus(nb_step,orientation):
-    #0.25mm/step
-    #31um/microsteps
-
-    stage.release()
+#0.25mm/step
+#31um/microsteps
     
-    if orientation == 'up':
-        for i in range(nb_step):
-            stage.onestep(direction=stepper.FORWARD, style=stepper.MICROSTEP)
-            sleep(0.001)
-            
-    if orientation == 'down':
-        for i in range(nb_step):
-            stage.onestep(direction=stepper.BACKWARD, style=stepper.MICROSTEP)
-            sleep(0.001)
-            
-    stage.release()
+if orientation == 'up':
+    for i in range(nb_step):
+        stage.onestep(direction=stepper.FORWARD, style=stepper.MICROSTEP)
+        sleep(0.001)
 
-    
-focus(nb_step, orientation)
- 
+if orientation == 'down':
+    for i in range(nb_step):
+        stage.onestep(direction=stepper.BACKWARD, style=stepper.MICROSTEP)
+        sleep(0.001)
+            
+stage.release()