{"updated": "2026-10-17", "mount": "sony-e", "slug": "sony-sel400f28gm", "name": "FE 400mm F2.8 GM OSS SEL400F28GM", "maker": "ソニー", "model": "SEL400F28GM", "band": "tele", "specs": {"メーカー": "ソニー", "焦点距離": "400mm", "開放F値": "F2.8", "レンズタイプ": "単焦点・大口径超望遠レンズ", "対応マウント": "ソニー E", "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": "2.7m", "最大撮影倍率": "0.16倍", "フィルター径": "40.5mm", "最大径×長さ": "158.1x359mm", "重さ": "2895g", "防塵・防滴": "防塵・防滴", "発売日": ""}, "today": {"date": "2026-10-17", "rakuten": 1228000, "yahoo": 1580548, "cheapest": 1228000, "cheapest_mall": "r"}, "history": [{"date": "2026-09-15", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-09-16", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-09-17", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-09-18", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-09-19", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-09-20", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-09-21", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-09-22", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-09-23", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-09-24", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-09-25", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-09-26", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-09-27", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-09-28", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-09-29", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-09-30", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-10-01", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-10-02", "rakuten": 1148000, "yahoo": 1580548}, {"date": "2026-10-03", "rakuten": 1148000, "yahoo": 1580548}, {"date": "2026-10-04", "rakuten": 1148000, "yahoo": 1580548}, {"date": "2026-10-05", "rakuten": 1148000, "yahoo": 1580548}, {"date": "2026-10-06", "rakuten": 1148000, "yahoo": 1580548}, {"date": "2026-10-07", "rakuten": 1148000, "yahoo": 1580548}, {"date": "2026-10-08", "rakuten": 1148000, "yahoo": 1580548}, {"date": "2026-10-09", "rakuten": 1148000, "yahoo": 1580548}, {"date": "2026-10-10", "rakuten": 1148000, "yahoo": 1580548}, {"date": "2026-10-11", "rakuten": 1148000, "yahoo": 1580548}, {"date": "2026-10-12", "rakuten": 1148000, "yahoo": 1580548}, {"date": "2026-10-13", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-10-14", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-10-15", "rakuten": 1387800, "yahoo": 1580548}, {"date": "2026-10-16", "rakuten": 1228000, "yahoo": 1580548}, {"date": "2026-10-17", "rakuten": 1228000, "yahoo": 1580548}], "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/sony-e/sony-sel400f28gm/", "rental": null}