diff --git a/rtengine/camconst.json b/rtengine/camconst.json
index 72be017b9..1da100a2c 100644
--- a/rtengine/camconst.json
+++ b/rtengine/camconst.json
@@ -2931,6 +2931,11 @@ Camera constants:
         "pdaf_pattern" : [ 0,12,24,36,54,66,72,84,96,114,120,132,150,156,174,180,192,204,216,234,240,252,264,276,282,300,306,324,336,342,360,372,384,402,414,420],
         "pdaf_offset" : 9
     },
+    
+    { // Quality C
+        "make_model": "Sony ILCE-7M4",
+        "dcraw_matrix": [ 8532, -701, -1167, -4095, 11879, 2508, -797, 2424, 7010 ] // DNG 14.1
+    },
 
     { // Quality C,
         "make_model": "Sony ILCE-7RM3",