diff --git a/rtengine/camconst.json b/rtengine/camconst.json
index ac3980bbe..cfee0dcd4 100644
--- a/rtengine/camconst.json
+++ b/rtengine/camconst.json
@@ -2185,6 +2185,16 @@ Camera constants:
         ]
     },
 
+    { // Quality X
+        "make_model": ["OM Digital Solutions OM-5"],
+        "dcraw_matrix": [ 11896, -5110, -1076, -3181, 11378, 2048, -519, 1224, 5166 ], // ColorMatrix2 using illuminant D65 from Adobe DNG Converter 15.0
+        "raw_crop" : [
+           { "frame" : [8200, 6132], "crop": [0, 0, 8172, 6132] },
+           { "frame" : [5240, 3912], "crop": [0, 0, 5240, 3912] },
+           { "frame" : [10400, 7792], "crop": [0, 0, 10392, 7792] }
+        ]
+    },
+
     { // Quality B
         "make_model": [ "Panasonic DC-LX100M2" ],
         "dcraw_matrix": [ 11577, -4230, -1106, -3967, 12211, 1957, -759, 1762, 5610 ], // DNG v13.2