diff --git a/script/optics/FocusYRotScan.py b/script/optics/FocusYRotScan.py
index a14e1e9d..d2a323d2 100644
--- a/script/optics/FocusYRotScan.py
+++ b/script/optics/FocusYRotScan.py
@@ -6,6 +6,7 @@ set analyser parameters separately!
 """
 
 import math
+set_exec_pars(compression=True)
 
 # adjust the following parameters
 DISTANCE = 0.08
@@ -14,7 +15,7 @@ LATENCY = 0.5
 ENDSCAN = False
 
 MOTORS = [FocusYRot]
-SENSORS = [SampleCurrent, RefCurrent, MachineCurrent, OpticsCameraCentroidX, OpticsCameraSigmaX]
+SENSORS = [SampleCurrent, RefCurrent, MachineCurrent, OpticsCameraCentroidX, OpticsCameraSigmaX, opps1img]
 STARTPOS = (-DISTANCE / 2.0)
 ENDPOS = (DISTANCE / 2.0)
 RELATIVE = True