{"updated": "2026-09-19", "mount": "canon-rf", "slug": "canon-rf50mm-f1-2-l-usm", "name": "RF50mm F1.2 L USM", "maker": "キヤノン", "model": "", "band": "standard", "specs": {"メーカー": "キヤノン", "焦点距離": "50mm", "開放F値": "F1.2", "レンズタイプ": "単焦点・大口径標準単焦点レンズ", "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": "0.39m", "最大撮影倍率": "0.18倍", "フィルター径": "77mm", "最大径×長さ": "89.8x108mm", "重さ": "950g", "防塵・防滴": "-", "発売日": "2018/10/25"}, "today": {"date": "2026-09-19", "rakuten": 344500, "yahoo": 254000, "cheapest": 254000, "cheapest_mall": "y"}, "history": [{"date": "2026-09-15", "rakuten": 344500, "yahoo": 254000}, {"date": "2026-09-16", "rakuten": 344500, "yahoo": 254000}, {"date": "2026-09-17", "rakuten": 344500, "yahoo": 254000}, {"date": "2026-09-18", "rakuten": 344500, "yahoo": 254000}, {"date": "2026-09-19", "rakuten": 344500, "yahoo": 254000}], "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-rf50mm-f1-2-l-usm/"}