{
  "slug": "nikon-z-20-f18s",
  "name": "NIKKOR Z 20mm f/1.8 S",
  "category": "lens",
  "specs": {
    "maker": "ニコン",
    "released": "2020-03",
    "mount": "ニコンZ",
    "format": "フルフレーム",
    "focal_length": "20mm",
    "max_aperture": "f/1.8",
    "elements": "11群14枚",
    "blades": 9,
    "min_focus_m": 0.2,
    "max_magnification": "0.19倍",
    "stabilization": "なし",
    "filter_mm": 77,
    "weight_g": 505,
    "size_mm": "84.5x108.5",
    "weather_sealed": "配慮",
    "price_range": "約16万円前後"
  },
  "summary": "S-Lineの超広角単焦点。EDレンズ3枚と非球面レンズ3枚を用いた光学系で、画面周辺まで点像の乱れを抑えた描写が特徴。星景や風景撮影で定番の一本。",
  "amazon_query": "ニコン NIKKOR Z 20mm f/1.8 S",
  "amazon_url": "https://www.amazon.co.jp/dp/B084PVNHPP",
  "construction_url": "https://nij.nikon.com/products/lineup/nikkor/zmount/nikkor_z_20mm_f18_s/spec.html",
  "mtf_url": "https://nij.nikon.com/products/lineup/nikkor/zmount/nikkor_z_20mm_f18_s/spec.html",
  "source_url": "https://nij.nikon.com/products/lineup/nikkor/zmount/nikkor_z_20mm_f18_s/spec.html",
  "retrieved_at": "2026-07-24",
  "product_url": "https://nij.nikon.com/products/lineup/nikkor/zmount/nikkor_z_20mm_f18_s/"
}