{
  "slug": "canon-rf-10-20-f4l",
  "name": "RF10-20mm F4 L IS STM",
  "category": "lens",
  "specs": {
    "maker": "キヤノン",
    "released": "2023-10",
    "mount": "キヤノンRF",
    "format": "フルフレーム",
    "focal_length": "10-20mm",
    "max_aperture": "f/4",
    "elements": "12群16枚",
    "blades": 9,
    "min_focus_m": 0.25,
    "max_magnification": "0.12倍",
    "stabilization": "あり（最大5段）",
    "weight_g": 570,
    "size_mm": "83.7x112",
    "weather_sealed": "対応",
    "price_range": "約34万円前後"
  },
  "summary": "一眼カメラ用AFズームとして世界初の焦点距離10mmを実現した超広角Lズーム。約570gの小型軽量ボディに手ブレ補正を内蔵し、周辺協調制御で広角特有の周辺ブレも抑える。風景や建築、星景まで超広角表現を手持ちで狙える1本。",
  "amazon_query": "キヤノン RF10-20mm F4 L IS STM",
  "construction_url": "https://personal.canon.jp/product/camera/rf/rf10-20-f4l/spec",
  "mtf_url": "https://personal.canon.jp/product/camera/rf/rf10-20-f4l/spec",
  "source_url": "https://personal.canon.jp/product/camera/rf/rf10-20-f4l/spec",
  "retrieved_at": "2026-07-24",
  "product_url": "https://personal.canon.jp/product/camera/rf/rf10-20-f4l"
}