{"updated": "2026-09-19", "mount": "mft", "slug": "zhongyi-freewalker-42-5mm-f1-2", "name": "FREEWALKER 42.5mm F1.2", "maker": "中一光学", "model": "", "band": "standard", "specs": {"メーカー": "中一光学", "焦点距離": "42.5mm", "開放F値": "F1.2", "レンズタイプ": "単焦点・大口径中望遠レンズ", "対応マウント": "マイクロフォーサーズ", "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": "0.45m", "最大撮影倍率": "0.1倍", "フィルター径": "49mm", "最大径×長さ": "", "重さ": "310g", "防塵・防滴": "-", "発売日": ""}, "today": {"date": "2026-09-19", "rakuten": 33300, "yahoo": 33300, "cheapest": 33300, "cheapest_mall": "r"}, "history": [{"date": "2026-09-15", "rakuten": 33300, "yahoo": 33300}, {"date": "2026-09-16", "rakuten": 33300, "yahoo": 33300}, {"date": "2026-09-17", "rakuten": 33300, "yahoo": 33300}, {"date": "2026-09-18", "rakuten": 33300, "yahoo": 33300}, {"date": "2026-09-19", "rakuten": 33300, "yahoo": 33300}], "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/mft/zhongyi-freewalker-42-5mm-f1-2/"}