diff --git a/MediaBrowser.Server.Implementations/Library/Resolvers/PhotoResolver.cs b/MediaBrowser.Server.Implementations/Library/Resolvers/PhotoResolver.cs
index 02960ea7ea..d1cf7d6682 100644
--- a/MediaBrowser.Server.Implementations/Library/Resolvers/PhotoResolver.cs
+++ b/MediaBrowser.Server.Implementations/Library/Resolvers/PhotoResolver.cs
@@ -30,7 +30,8 @@ namespace MediaBrowser.Server.Implementations.Library.Resolvers
             return null;
         }
 
-        protected static string[] ImageExtensions = { ".tiff", ".jpeg", ".jpg", ".png", ".aiff" };
+        // Some common file name extensions for RAW picture files include: .cr2, .crw, .dng, .nef, .orf, .rw2, .pef, .arw, .sr2, .srf, and .tif.
+        protected static string[] ImageExtensions = { ".tiff", ".jpeg", ".jpg", ".png", ".aiff", ".cr2", ".crw", "dng", ".nef", ".orf", ".pef", ".arw" };
 
         private static readonly string[] IgnoreFiles =
         {