Our shop are all 100% original authentic. Our shop are all original authentic. Lens construction: 15 elements in 10 groups? Shortest shooting distance: 0.23 m? Focal length: 8 mm to 18 mm? External dimensions:? 73.4 mm x about 88 mm? Weight: about 315 g. If “Made in Japan” is NOT described on whole listing page, Items are manufactured in other country China, Vietnam and etc. [Manual & Menu Language]. We treat Japanese Market Usage Items. So items have only Japanese Manual & Menu Language. Japan Voltage : 100V Please check your country’s voltage before order. Plug: TypeA Please check your country’s plug. [International Buyers – Please Note].