{"updated": "2026-09-19", "mount": "canon-rf", "slug": "laowa-laowa-4mm-f2-8-fisheye", "name": "LAOWA 4mm F2.8 Fisheye [キヤノンRF用]", "maker": "LAOWA（ラオワ）", "model": "", "band": "wide", "specs": {"メーカー": "LAOWA（ラオワ）", "焦点距離": "4mm", "開放F値": "F2.8", "レンズタイプ": "単焦点・魚眼レンズ", "対応マウント": "キヤノン RF", "フォーマット": "APS-C専用", "フォーカス": "MF", "手ブレ補正": "-", "最短撮影距離": "8cm", "最大撮影倍率": "0.11倍", "フィルター径": "", "最大径×長さ": "", "重さ": "", "防塵・防滴": "-", "発売日": "2023/4/21"}, "today": {"date": "2026-09-19", "rakuten": 27800, "yahoo": 39320, "cheapest": 27800, "cheapest_mall": "r"}, "history": [{"date": "2026-09-15", "rakuten": 27800, "yahoo": 34800}, {"date": "2026-09-16", "rakuten": 27800, "yahoo": 39320}, {"date": "2026-09-17", "rakuten": 27800, "yahoo": 39320}, {"date": "2026-09-18", "rakuten": 27800, "yahoo": 39320}, {"date": "2026-09-19", "rakuten": 27800, "yahoo": 39320}], "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/laowa-laowa-4mm-f2-8-fisheye/"}