{"updated": "2026-09-19", "mount": "canon-rf", "slug": "canon-rf1200mm-f8-l-is-usm", "name": "RF1200mm F8 L IS USM", "maker": "キヤノン", "model": "", "band": "tele", "specs": {"メーカー": "キヤノン", "焦点距離": "1200mm", "開放F値": "F8", "レンズタイプ": "単焦点・大口径超望遠レンズ", "対応マウント": "キヤノン RF", "フォーマット": "フルサイズ対応", "フォーカス": "AF/MF", "手ブレ補正": "○", "最短撮影距離": "4.3m", "最大撮影倍率": "0.29倍", "フィルター径": "52mm", "最大径×長さ": "168x537mm", "重さ": "3340g", "防塵・防滴": "防塵・防滴", "発売日": "2022/5/26"}, "today": {"date": "2026-09-19", "rakuten": 5253930, "yahoo": 3168000, "cheapest": 3168000, "cheapest_mall": "y"}, "history": [{"date": "2026-09-15", "rakuten": 5253930, "yahoo": 3168000}, {"date": "2026-09-16", "rakuten": 5253930, "yahoo": 3168000}, {"date": "2026-09-17", "rakuten": 5253930, "yahoo": 3168000}, {"date": "2026-09-18", "rakuten": 5253930, "yahoo": 3168000}, {"date": "2026-09-19", "rakuten": 5253930, "yahoo": 3168000}], "license": "CC BY 4.0（数値）", "method": "lens.match の規則で確かめた出品の最安。推定なし", "page": "https://kurashigram.com/lens/canon-rf/canon-rf1200mm-f8-l-is-usm/"}