Index: trunk/ppStack/src/ppStackCamera.c
===================================================================
--- trunk/ppStack/src/ppStackCamera.c	(revision 20995)
+++ trunk/ppStack/src/ppStackCamera.c	(revision 21366)
@@ -71,5 +71,5 @@
 bool ppStackCamera(pmConfig *config)
 {
-    bool haveWeights = false;           // Do we have weight maps?
+    bool haveVariances = false;           // Do we have variance maps?
     bool havePSFs = false;              // Do we have PSFs?
 
@@ -97,5 +97,5 @@
         bool mdok;
         psString mask = psMetadataLookupStr(&mdok, input, "MASK"); // Name of mask
-        psString weight = psMetadataLookupStr(&mdok, input, "WEIGHT"); // Name of weight map
+        psString variance = psMetadataLookupStr(&mdok, input, "VARIANCE"); // Name of variance map
         psString psf = psMetadataLookupStr(&mdok, input, "PSF"); // Name of PSF
         psString sources = psMetadataLookupStr(&mdok, input, "SOURCES"); // Name of sources
@@ -140,22 +140,22 @@
         }
 
-        // Optionally add the weight file
-        if (weight && strlen(weight) > 0) {
-            haveWeights = true;
-            psArray *weightFiles = psArrayAlloc(1); // Array of filenames for this FPA
-            weightFiles->data[0] = psMemIncrRefCounter(weight);
-            psMetadataAddArray(config->arguments, PS_LIST_TAIL, "WEIGHT.FILENAMES", PS_META_REPLACE,
-                               "Filenames of weight files", weightFiles);
-            psFree(weightFiles);
+        // Optionally add the variance file
+        if (variance && strlen(variance) > 0) {
+            haveVariances = true;
+            psArray *varianceFiles = psArrayAlloc(1); // Array of filenames for this FPA
+            varianceFiles->data[0] = psMemIncrRefCounter(variance);
+            psMetadataAddArray(config->arguments, PS_LIST_TAIL, "VARIANCE.FILENAMES", PS_META_REPLACE,
+                               "Filenames of variance files", varianceFiles);
+            psFree(varianceFiles);
 
             bool status;
-            pmFPAfile *weightFile = pmFPAfileBindFromArgs(&status, imageFile, config, "PPSTACK.INPUT.WEIGHT",
-                                                          "WEIGHT.FILENAMES");
+            pmFPAfile *varianceFile = pmFPAfileBindFromArgs(&status, imageFile, config,
+                                                            "PPSTACK.INPUT.VARIANCE", "VARIANCE.FILENAMES");
             if (!status) {
-                psError(PS_ERR_UNKNOWN, false, "Unable to define file from weight %d (%s)", i, weight);
-                return false;
-            }
-            if (weightFile->type != PM_FPA_FILE_WEIGHT) {
-                psError(PS_ERR_IO, true, "PPSTACK.INPUT.WEIGHT is not of type WEIGHT");
+                psError(PS_ERR_UNKNOWN, false, "Unable to define file from variance %d (%s)", i, variance);
+                return false;
+            }
+            if (varianceFile->type != PM_FPA_FILE_VARIANCE) {
+                psError(PS_ERR_IO, true, "PPSTACK.INPUT.VARIANCE is not of type VARIANCE");
                 return false;
             }
@@ -217,22 +217,22 @@
 #if 0
         // Output convolved files
-        pmFPAfile *outconvImage  = defineOutputConvolved("PPSTACK.OUTCONV", imageFile->fpa, config,
+        pmFPAfile *outconvImage    = defineOutputConvolved("PPSTACK.OUTCONV", imageFile->fpa, config,
+                                                           PM_FPA_FILE_IMAGE);
+        pmFPAfile *outconvMask     = defineOutputConvolved("PPSTACK.OUTCONV.MASK", imageFile->fpa, config,
+                                                           PM_FPA_FILE_MASK);
+        pmFPAfile *outconvVariance = defineOutputConvolved("PPSTACK.OUTCONV.VARIANCE", imageFile->fpa, config,
+                                                           PM_FPA_FILE_VARIANCE);
+        if (!outconvImage || !outconvMask || !outconvVariance) {
+            return false;
+        }
+
+        // Input convolved files
+        pmFPAfile *inconvImage    = defineInputConvolved("PPSTACK.INCONV", outconvImage, config,
                                                          PM_FPA_FILE_IMAGE);
-        pmFPAfile *outconvMask   = defineOutputConvolved("PPSTACK.OUTCONV.MASK", imageFile->fpa, config,
+        pmFPAfile *inconvMask     = defineInputConvolved("PPSTACK.INCONV.MASK", outconvMask, config,
                                                          PM_FPA_FILE_MASK);
-        pmFPAfile *outconvWeight = defineOutputConvolved("PPSTACK.OUTCONV.WEIGHT", imageFile->fpa, config,
-                                                         PM_FPA_FILE_WEIGHT);
-        if (!outconvImage || !outconvMask || !outconvWeight) {
-            return false;
-        }
-
-        // Input convolved files
-        pmFPAfile *inconvImage  = defineInputConvolved("PPSTACK.INCONV", outconvImage, config,
-                                                       PM_FPA_FILE_IMAGE);
-        pmFPAfile *inconvMask   = defineInputConvolved("PPSTACK.INCONV.MASK", outconvMask, config,
-                                                       PM_FPA_FILE_MASK);
-        pmFPAfile *inconvWeight = defineInputConvolved("PPSTACK.INCONV.WEIGHT", outconvWeight, config,
-                                                       PM_FPA_FILE_WEIGHT);
-        if (!inconvImage || !inconvMask || !inconvWeight) {
+        pmFPAfile *inconvVariance = defineInputConvolved("PPSTACK.INCONV.VARIANCE", outconvVariance, config,
+                                                         PM_FPA_FILE_VARIANCE);
+        if (!inconvImage || !inconvMask || !inconvVariance) {
             return false;
         }
@@ -246,6 +246,6 @@
         psMetadataRemoveKey(config->arguments, "MASK.FILENAMES");
     }
-    if (psMetadataLookup(config->arguments, "WEIGHT.FILENAMES")) {
-        psMetadataRemoveKey(config->arguments, "WEIGHT.FILENAMES");
+    if (psMetadataLookup(config->arguments, "VARIANCE.FILENAMES")) {
+        psMetadataRemoveKey(config->arguments, "VARIANCE.FILENAMES");
     }
     if (psMetadataLookup(config->arguments, "PSF.FILENAMES")) {
@@ -295,16 +295,16 @@
     outMask->save = true;
 
-    // Output weight
-    if (haveWeights) {
-        pmFPAfile *outWeight = pmFPAfileDefineOutput(config, output->fpa, "PPSTACK.OUTPUT.WEIGHT");
-        if (!outWeight) {
-            psError(PS_ERR_IO, false, _("Unable to generate output file from PPSTACK.OUTPUT.WEIGHT"));
-            return false;
-        }
-        if (outWeight->type != PM_FPA_FILE_WEIGHT) {
-            psError(PS_ERR_IO, true, "PPSTACK.OUTPUT.WEIGHT is not of type WEIGHT");
-            return false;
-        }
-        outWeight->save = true;
+    // Output variance
+    if (haveVariances) {
+        pmFPAfile *outVariance = pmFPAfileDefineOutput(config, output->fpa, "PPSTACK.OUTPUT.VARIANCE");
+        if (!outVariance) {
+            psError(PS_ERR_IO, false, _("Unable to generate output file from PPSTACK.OUTPUT.VARIANCE"));
+            return false;
+        }
+        if (outVariance->type != PM_FPA_FILE_VARIANCE) {
+            psError(PS_ERR_IO, true, "PPSTACK.OUTPUT.VARIANCE is not of type VARIANCE");
+            return false;
+        }
+        outVariance->save = true;
     }