diff --git a/script/optics/RefocusYManipulatorZScan.py b/script/optics/RefocusYManipulatorZScan.py
index 3b99e3fd..b9cff5f2 100644
--- a/script/optics/RefocusYManipulatorZScan.py
+++ b/script/optics/RefocusYManipulatorZScan.py
@@ -10,7 +10,7 @@ move manipulator and mirror to center position before start!
 import math
 
 # adjust the following parameters
-STEPS = 0.05
+STEPS = 60
 LATENCY = 0.0
 ENDSCAN = False