Index: trunk/ppSub/src/ppSubMatchPSFs.c
===================================================================
--- trunk/ppSub/src/ppSubMatchPSFs.c	(revision 31672)
+++ trunk/ppSub/src/ppSubMatchPSFs.c	(revision 32676)
@@ -201,4 +201,6 @@
 bool ppSubMatchPSFs(ppSubData *data)
 {
+    bool mdok = false;
+
     psAssert(data, "Require processing data");
     pmConfig *config = data->config;    // Configuration
@@ -208,4 +210,10 @@
     psMetadata *recipe = psMetadataLookupMetadata(NULL, config->recipes, PPSUB_RECIPE); // Recipe for ppSim
     psAssert(recipe, "We checked this earlier, so it should be here.");
+
+    bool noConvolve = psMetadataLookupBool(&mdok, recipe, "NOCONVOLVE"); // Do not use convolved images.
+    if (noConvolve) {
+	psWarning("not matching PSFs because NOCONVOLVE is TRUE\n");
+	return true;
+    }
 
     pmFPAview *view = ppSubViewReadout(); // View to readout
@@ -228,6 +236,4 @@
 	psFree(refConv);
     }
-
-    bool mdok;                          // Status of MD lookup
 
     // Load pre-calculated kernel, if available