Index: /trunk/Mars/ceres.rc
===================================================================
--- /trunk/Mars/ceres.rc	(revision 18283)
+++ /trunk/Mars/ceres.rc	(revision 18284)
@@ -134,4 +134,11 @@
 ConesTransmission.FileName:            resmc/fact/Transmittance_1439Cones_FACT_bearbeitet.txt
 
+# A backward motivated overall PDE adjustment. Introduced by Fabian T. to produce the ICRC2015 Crab spectrum. Fabian, please comment a bit more on this. In case this is only about the additional shielding of our camera support structure, then we schould actually name it like this.
+
+AdditionalPhotonAcceptance.Function.Name:  0.8
+AdditionalPhotonAcceptance.Function.Npx:   100L
+AdditionalPhotonAcceptance.Function.Xmin:  900L
+AdditionalPhotonAcceptance.Function.Xmax:  290L
+
 # -------------------------------------------------------------------------
 # Setup what in MMCS would be called "additional spot size"