{
  "slug": "canon-rf-70-200-f4l",
  "name": "RF70-200mm F4 L IS USM",
  "category": "lens",
  "specs": {
    "maker": "キヤノン",
    "released": "2021-03",
    "mount": "キヤノンRF",
    "format": "フルフレーム",
    "focal_length": "70-200mm",
    "max_aperture": "f/4",
    "elements": "11群16枚",
    "blades": 9,
    "min_focus_m": 0.6,
    "max_magnification": "0.28倍",
    "stabilization": "あり（最大5段）",
    "filter_mm": 77,
    "weight_g": 695,
    "size_mm": "83.5x119",
    "weather_sealed": "対応",
    "price_range": "約21万円前後"
  },
  "summary": "全長約119mm・約695gと標準ズーム並みのサイズに収めたF4通し望遠ズーム。沈胴式の採用で携帯性が高く、5段分の手ブレ補正は協調制御で最大7.5段に達する。小三元の望遠担当として風景や旅行に持ち出しやすい1本。",
  "amazon_query": "キヤノン RF70-200mm F4 L IS USM",
  "construction_url": "https://personal.canon.jp/product/camera/rf/rf70-200-f4l/spec",
  "mtf_url": "https://personal.canon.jp/product/camera/rf/rf70-200-f4l/spec",
  "source_url": "https://personal.canon.jp/product/camera/rf/rf70-200-f4l/spec",
  "retrieved_at": "2026-07-24",
  "product_url": "https://personal.canon.jp/product/camera/rf/rf70-200-f4l"
}