{"updated": "2026-09-19", "mount": "leica-l", "slug": "sirui-astra-50mm-t1-8-1-33x-ast-50-ln-jp", "name": "Astra 50mm T1.8 1.33X アナモルフィックシネマレンズ ナチュラルフレア AST-50-LN-JP [ライカL用]", "maker": "SIRUI", "model": "", "band": "standard", "specs": {"メーカー": "SIRUI", "焦点距離": "50mm", "開放F値": "", "レンズタイプ": "単焦点・アナモルフィックシネマレンズ", "対応マウント": "ライカ L", "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": "0.5m", "最大撮影倍率": "1：7.2(縦)、1：10.2(横)", "フィルター径": "67mm", "最大径×長さ": "80x128.9mm", "重さ": "625g", "防塵・防滴": "防塵・防滴", "発売日": "2025/12/31"}, "today": {"date": "2026-09-19", "rakuten": 139700, "yahoo": 139700, "cheapest": 139700, "cheapest_mall": "r"}, "history": [{"date": "2026-09-15", "rakuten": 139700, "yahoo": 139700}, {"date": "2026-09-16", "rakuten": 139700, "yahoo": 139700}, {"date": "2026-09-17", "rakuten": 139700, "yahoo": 139700}, {"date": "2026-09-18", "rakuten": 139700, "yahoo": 139700}, {"date": "2026-09-19", "rakuten": 139700, "yahoo": 139700}], "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/leica-l/sirui-astra-50mm-t1-8-1-33x-ast-50-ln-jp/"}