diff --git a/script/optics/ExitSlitYScan.py b/script/optics/ExitSlitYScan.py
index 1a1bb3d6..43183d5a 100644
--- a/script/optics/ExitSlitYScan.py
+++ b/script/optics/ExitSlitYScan.py
@@ -11,7 +11,7 @@ SENSORS = (SampleCurrent,RefCurrent, MachineCurrent)
 STARTPOS = (1.0)
 ENDPOS = (-0.5)
 #STEPS = -0.01
-DWELL = 0.1
+DWELL = 0.5
 TOTAL_TIME = 150
 STEPS = int(TOTAL_TIME / DWELL) + 1