Used Canon EXTENDER EF 2xII. This is an extender/converter lens that doubles the focal length. Only the main unit and pouch are included; the original box and instruction manual are not. I used it with a Canon EOS 7D and EF 70-200mm f/2.8L combination twice at sports days and once at a Japan Self-Defense Forces air show. The last time I used it was in October 2022. As of August 6, 2025, I no longer have the lens, so I was unable to confirm its operation. I don't see any mold or clouding, but I am not an expert, so I can't say for sure. The paint has some scratches from carrying it around. Please check the photos. [Set Contents] - Extender body - Front cap - End cap - Pouch If you have any questions, please leave a comment.