Index: trunk/psModules/src/camera/pmFPARead.c
===================================================================
--- trunk/psModules/src/camera/pmFPARead.c	(revision 18207)
+++ trunk/psModules/src/camera/pmFPARead.c	(revision 18210)
@@ -443,5 +443,14 @@
         return false;
     }
-    float bad = psMetadataLookupF32(&mdok, cell->concepts, "CELL.BAD"); // Bad level
+
+    // XXX for IMAGE, we need the CELL.BAD value, but for MASK, we need the BAD mask value
+
+    float bad = 0;
+    if (type == FPA_READ_TYPE_MASK) {
+      bad = 1.0;
+    } else {
+      bad = psMetadataLookupF32(&mdok, cell->concepts, "CELL.BAD"); // Bad level
+    }
+
     psRegion *trimsec = psMetadataLookupPtr(&mdok, cell->concepts, "CELL.TRIMSEC"); // Trim sections
     if (!mdok || !trimsec || psRegionIsNaN(*trimsec)) {
@@ -449,4 +458,6 @@
         return false;
     }
+
+
 
     // Check the third dimension