diff --git a/config/devices.properties b/config/devices.properties
index aa33c97..dfd6231 100755
--- a/config/devices.properties
+++ b/config/devices.properties
@@ -15,4 +15,4 @@ gun_phase=ch.psi.pshell.epics.Positioner|SINEG01-RSYS:SET-BEAM-PHASE SINEG01-RSY
 #rf_ampl_rb=ch.psi.pshell.epics.ChannelDouble|MINSB03-RSYS:GET-VSUM-AMPLT|Read||true
 image=ch.psi.pshell.imaging.FileSource|/afs/psi.ch/intranet/SF/Applications/config/pshell_op/context/beam.jpg|||
 cam=ch.psi.pshell.epics.ArraySource|SINEG01-DSCR350:FPICTURE Int16 5529600|||
-matrix=ch.psi.pshell.epics.GenericMatrix|SINEG01-DSCR350:FPICTURE Int16 5529600|||
+matrix=ch.psi.pshell.epics.GenericMatrix|SINEG01-DSCR350:FPICTURE 2560 2160 Int16 5529600|||