Index: trunk/psphot/src/psphotChoosePSF.c
===================================================================
--- trunk/psphot/src/psphotChoosePSF.c	(revision 15023)
+++ trunk/psphot/src/psphotChoosePSF.c	(revision 16820)
@@ -2,9 +2,17 @@
 
 // try PSF models and select best option
-pmPSF *psphotChoosePSF (pmReadout *readout, psArray *sources, psMetadata *recipe, psMaskType maskVal, psMaskType mark) {
+pmPSF *psphotChoosePSF (pmReadout *readout, psArray *sources, psMetadata *recipe) {
 
     bool status;
 
     psTimerStart ("psphot");
+
+    // user-defined masks to test for good/bad pixels (build from recipe list if not yet set)
+    psMaskType maskVal = psMetadataLookupU8(&status, recipe, "MASK.PSPHOT"); // Mask value for bad pixels
+    assert (maskVal);
+
+    // user-defined masks to test for good/bad pixels (build from recipe list if not yet set)
+    psMaskType mark = psMetadataLookupU8(&status, recipe, "MASK.MARK"); // Mask value for bad pixels
+    assert (mark);
 
     // examine PSF sources in S/N order (brightest first)