Hi Bogdan

Unfortunately you can't delete a makernote tag without modifying the exiftool code. I figured that deleting a makernote tag could easily crash the poorly written manufacurer software so I don't allow it. And I assume you want to specify a tag by number to distingush between the 2 lenstype tags? The only way to do this is to create a user-defined tag to override the exiftool definition. You can't specify a tag by number. - Phil