diff --git a/src/canonmn.cpp b/src/canonmn.cpp
index 2d45d8be..c0887d15 100644
--- a/src/canonmn.cpp
+++ b/src/canonmn.cpp
@@ -917,6 +917,7 @@ namespace Exiv2 {
         { 174, "Sigma 50-500mm f/4.5-6.3 APO DG OS HSM"                     }, // 2
         { 174, "Sigma 150-500mm f/5-6.3 APO DG OS HSM"                      }, // 3
         { 174, "Zeiss Milvus 100mm f/2 Makro"                               }, // 4
+        { 174, "Sigma 120-300mm f/2.8 EX APO DG OS HSM"                     }, // 5
         { 175, "Canon EF 400mm f/2.8L"                                      },
         { 176, "Canon EF 24-85mm f/3.5-4.5 USM"                             },
         { 177, "Canon EF 300mm f/4L IS"                                     },
diff --git a/test/bugfixes-test.sh b/test/bugfixes-test.sh
index 8a76b4db..a8e8cc57 100755
--- a/test/bugfixes-test.sh
+++ b/test/bugfixes-test.sh
@@ -613,6 +613,14 @@ source ./functions.source
     copyTestFile                        $filename
     runTest exiv2 -pa                   $filename
 
+    num=1252
+    for X in a b; do
+      filename=exiv2-bug$num$X.exv
+      echo '------>' Bug $filename '<-------' >&2
+      copyTestFile                      $filename
+      runTest exiv2 -pa --grep lens/i   $filename
+    done
+
 ) 3>&1 > $results 2>&1
 
 printf "\n"
diff --git a/test/data/bugfixes-test.out b/test/data/bugfixes-test.out
index f502286a..c4966924 100644
Binary files a/test/data/bugfixes-test.out and b/test/data/bugfixes-test.out differ
diff --git a/test/data/exiv2-bug1252a.exv b/test/data/exiv2-bug1252a.exv
new file mode 100644
index 00000000..8fd233ac
Binary files /dev/null and b/test/data/exiv2-bug1252a.exv differ
diff --git a/test/data/exiv2-bug1252b.exv b/test/data/exiv2-bug1252b.exv
new file mode 100644
index 00000000..c05390fe
Binary files /dev/null and b/test/data/exiv2-bug1252b.exv differ