diff --git a/test/data/test_reference_files/exiv2-test.out b/test/data/test_reference_files/exiv2-test.out
index 55970a5f..30cea1a6 100644
--- a/test/data/test_reference_files/exiv2-test.out
+++ b/test/data/test_reference_files/exiv2-test.out
@@ -2118,7 +2118,7 @@ File 15/16: 20060127_225027.jpg
 20060127_225027.jpg   Exif.CanonSi.0x0019                          Short       1  0
 20060127_225027.jpg   Exif.CanonSi.CameraType                      Short       1  Compact
 20060127_225027.jpg   Exif.CanonSi.AutoRotate                      Short       1  0
-20060127_225027.jpg   Exif.CanonSi.0x001c                          Short       1  0
+20060127_225027.jpg   Exif.CanonSi.NDFilter                        Short       1  Off
 20060127_225027.jpg   Exif.CanonSi.SelfTimer2                      Short       1  (0)
 20060127_225027.jpg   Exif.CanonSi.0x001e                          Short       1  0
 20060127_225027.jpg   Exif.CanonSi.0x001f                          Short       1  0
@@ -3758,7 +3758,7 @@ Compare image data and extracted data ------------------------------------
 < 20060127_225027.jpg   Exif.CanonSi.0x0019                          Short       1  0
 < 20060127_225027.jpg   Exif.CanonSi.CameraType                      Short       1  Compact
 < 20060127_225027.jpg   Exif.CanonSi.AutoRotate                      Short       1  0
-< 20060127_225027.jpg   Exif.CanonSi.0x001c                          Short       1  0
+< 20060127_225027.jpg   Exif.CanonSi.NDFilter                        Short       1  Off
 < 20060127_225027.jpg   Exif.CanonSi.SelfTimer2                      Short       1  (0)
 < 20060127_225027.jpg   Exif.CanonSi.0x001e                          Short       1  0
 < 20060127_225027.jpg   Exif.CanonSi.0x001f                          Short       1  0
@@ -5321,7 +5321,7 @@ Compare image data and extracted data ------------------------------------
 > 20060127_225027.exv   Exif.CanonSi.0x0019                          Short       1  0
 > 20060127_225027.exv   Exif.CanonSi.CameraType                      Short       1  Compact
 > 20060127_225027.exv   Exif.CanonSi.AutoRotate                      Short       1  0
-> 20060127_225027.exv   Exif.CanonSi.0x001c                          Short       1  0
+> 20060127_225027.exv   Exif.CanonSi.NDFilter                        Short       1  Off
 > 20060127_225027.exv   Exif.CanonSi.SelfTimer2                      Short       1  (0)
 > 20060127_225027.exv   Exif.CanonSi.0x001e                          Short       1  0
 > 20060127_225027.exv   Exif.CanonSi.0x001f                          Short       1  0
@@ -7122,7 +7122,7 @@ Compare original and inserted image data ---------------------------------
 < 20060127_225027.jpg   Exif.CanonSi.0x0019                          Short       1  0
 < 20060127_225027.jpg   Exif.CanonSi.CameraType                      Short       1  Compact
 < 20060127_225027.jpg   Exif.CanonSi.AutoRotate                      Short       1  0
-< 20060127_225027.jpg   Exif.CanonSi.0x001c                          Short       1  0
+< 20060127_225027.jpg   Exif.CanonSi.NDFilter                        Short       1  Off
 < 20060127_225027.jpg   Exif.CanonSi.SelfTimer2                      Short       1  (0)
 < 20060127_225027.jpg   Exif.CanonSi.0x001e                          Short       1  0
 < 20060127_225027.jpg   Exif.CanonSi.0x001f                          Short       1  0
@@ -8685,7 +8685,7 @@ Compare original and inserted image data ---------------------------------
 > 20060127_225027.exv   Exif.CanonSi.0x0019                          Short       1  0
 > 20060127_225027.exv   Exif.CanonSi.CameraType                      Short       1  Compact
 > 20060127_225027.exv   Exif.CanonSi.AutoRotate                      Short       1  0
-> 20060127_225027.exv   Exif.CanonSi.0x001c                          Short       1  0
+> 20060127_225027.exv   Exif.CanonSi.NDFilter                        Short       1  Off
 > 20060127_225027.exv   Exif.CanonSi.SelfTimer2                      Short       1  (0)
 > 20060127_225027.exv   Exif.CanonSi.0x001e                          Short       1  0
 > 20060127_225027.exv   Exif.CanonSi.0x001f                          Short       1  0