{"updated": "2026-09-19", "mount": "canon-rf", "slug": "zhongyi-speedmaster-cinema-20mm-t1-0-asph-s35", "name": "SPEEDMASTER CINEMA 20mm T1.0 ASPH. S35 [キヤノンRF用]", "maker": "中一光学", "model": "", "band": "wide", "specs": {"メーカー": "中一光学", "焦点距離": "20mm", "開放F値": "", "レンズタイプ": "単焦点・超大口径シネマレンズ", "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": "MF", "手ブレ補正": "-", "最短撮影距離": "0.31m", "最大撮影倍率": "", "フィルター径": "77mm", "最大径×長さ": "88x95mm", "重さ": "740g", "防塵・防滴": "-", "発売日": "2024/7/19"}, "today": {"date": "2026-09-19", "rakuten": 95400, "yahoo": 95400, "cheapest": 95400, "cheapest_mall": "r"}, "history": [{"date": "2026-09-15", "rakuten": 95400, "yahoo": 95400}, {"date": "2026-09-16", "rakuten": 95400, "yahoo": 95400}, {"date": "2026-09-17", "rakuten": 95400, "yahoo": 95400}, {"date": "2026-09-18", "rakuten": 95400, "yahoo": 95400}, {"date": "2026-09-19", "rakuten": 95400, "yahoo": 95400}], "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/zhongyi-speedmaster-cinema-20mm-t1-0-asph-s35/"}