Index: trunk/ppStack/src/ppStackPhotometry.c
===================================================================
--- trunk/ppStack/src/ppStackPhotometry.c	(revision 20777)
+++ trunk/ppStack/src/ppStackPhotometry.c	(revision 20995)
@@ -24,17 +24,17 @@
     bool mdok;                          // Status of MD lookup
 
-    float zpRadius = psMetadataLookupS32(&mdok, recipe, "ZP.RADIUS"); // Radius for ZP measurement
+    float zpRadius = psMetadataLookupS32(&mdok, recipe, "PHOT.RADIUS"); // Radius for PHOT measurement
     if (!mdok) {
-        psError(PS_ERR_UNKNOWN, true, "Unable to find ZP.RADIUS in recipe");
+        psError(PS_ERR_UNKNOWN, true, "Unable to find PHOT.RADIUS in recipe");
         return false;
     }
-    float zpSigma = psMetadataLookupF32(&mdok, recipe, "ZP.SIGMA"); // Gaussian sigma for photometry
+    float zpSigma = psMetadataLookupF32(&mdok, recipe, "PHOT.SIGMA"); // Gaussian sigma for photometry
     if (!mdok) {
-        psError(PS_ERR_UNKNOWN, true, "Unable to find ZP.SIGMA in recipe");
+        psError(PS_ERR_UNKNOWN, true, "Unable to find PHOT.SIGMA in recipe");
         return false;
     }
-    float zpFrac = psMetadataLookupF32(&mdok, recipe, "ZP.FRAC"); // Fraction of good pixels for photometry
+    float zpFrac = psMetadataLookupF32(&mdok, recipe, "PHOT.FRAC"); // Fraction of good pixels for photometry
     if (!mdok) {
-        psError(PS_ERR_UNKNOWN, true, "Unable to find ZP.FRAC in recipe");
+        psError(PS_ERR_UNKNOWN, true, "Unable to find PHOT.FRAC in recipe");
         return false;
     }