From 04d2695eae987b505bad5ee6206afdb4cc7819b9 Mon Sep 17 00:00:00 2001
From: Lawrence Lee <45837045+Lawrence37@users.noreply.github.com>
Date: Sat, 29 Mar 2025 21:00:51 -0700
Subject: [PATCH] Fix Nikon D5 black level when using LibRaw

With LibRaw, the black level is provided in the global black variable
instead of the per-channel array. Black levels in camconst.json override
the global black level instead of adding to the black level as with the
per-channel levels. LibRaw and dcraw have the same black level for the
D5, so it is sufficient to remove the black level from camconst.json.
---
 rtengine/camconst.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rtengine/camconst.json b/rtengine/camconst.json
index 3d518b529..211a06f1f 100644
--- a/rtengine/camconst.json
+++ b/rtengine/camconst.json
@@ -1857,7 +1857,7 @@ Camera constants:
     { // Quality B, no LENR samples
         "make_model": "Nikon D5",
         "dcraw_matrix": [ 9200,-3522,-992,-5755,13803,2117,-754,1486,6338 ], // DNG v13.2
-        "ranges": { "black": 0, "white": 16300 } // WL typical 16383 set to 16300 for safety
+        "ranges": { "white": 16300 } // WL typical 16383 set to 16300 for safety
     },
 
     { // Quality C