diff --git a/rtengine/camconst.json b/rtengine/camconst.json
index 894429426..2113c5532 100644
--- a/rtengine/camconst.json
+++ b/rtengine/camconst.json
@@ -1592,7 +1592,9 @@ Camera constants:
 
     { // Quality C, only colour matrix and PDAF lines info
         "make_model" : "Nikon Z 6",
-        "dcraw_matrix" : [8210, -2534, -683, -5355, 13338, 2212, -1143, 1929, 6464] // Adobe DNG Converter 11.1 Beta ColorMatrix2
+        "dcraw_matrix" : [8210, -2534, -683, -5355, 13338, 2212, -1143, 1929, 6464], // Adobe DNG Converter 11.1 Beta ColorMatrix2
+        "pdaf_pattern" : [0, 12],
+        "pdaf_offset" : 32        
     },
     
     { // Quality B, 16Mp and 64Mp raw frames