{"updated": "2026-09-19", "mount": "canon-rf", "slug": "ttartisan-ttartisan-17mm-f-1-4-c-asph", "name": "TTArtisan 17mm f/1.4 C ASPH [キヤノンRF用]", "maker": "銘匠光学", "model": "", "band": "wide", "specs": {"メーカー": "銘匠光学", "焦点距離": "17mm", "開放F値": "F1.4", "レンズタイプ": "単焦点・大口径広角レンズ", "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": "0.2m", "最大撮影倍率": "", "フィルター径": "40.5mm", "最大径×長さ": "63x57.5mm", "重さ": "280g", "防塵・防滴": "-", "発売日": "2022/9/29"}, "today": {"date": "2026-09-19", "rakuten": null, "yahoo": null, "cheapest": null, "cheapest_mall": null}, "history": [{"date": "2026-09-15", "rakuten": null, "yahoo": null}, {"date": "2026-09-16", "rakuten": null, "yahoo": null}, {"date": "2026-09-17", "rakuten": null, "yahoo": null}, {"date": "2026-09-18", "rakuten": null, "yahoo": null}, {"date": "2026-09-19", "rakuten": null, "yahoo": null}], "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/ttartisan-ttartisan-17mm-f-1-4-c-asph/"}