{
  "slug": "nikon-z-50-18s",
  "name": "NIKKOR Z 50mm f/1.8 S",
  "category": "lens",
  "specs": {
    "maker": "ニコン",
    "released": "2018-12",
    "mount": "ニコンZ",
    "format": "フルフレーム",
    "focal_length": "50mm",
    "max_aperture": "f/1.8",
    "elements": "9群12枚",
    "blades": 9,
    "min_focus_m": 0.4,
    "max_magnification": "0.15倍",
    "stabilization": "なし",
    "filter_mm": 62,
    "weight_g": 415,
    "size_mm": "76x86.5",
    "weather_sealed": "配慮",
    "price_range": "約8万円前後"
  },
  "summary": "Zマウント初期からあるS-Lineの標準単焦点。9群12枚構成・9枚羽根の円形絞りで、開放F1.8から高い解像力を狙った設計。STM駆動の静かなAFを備え、質量は約415g、フィルター径は62mm。",
  "amazon_query": "NIKKOR Z 50mm f/1.8 S",
  "construction_url": "https://nij.nikon.com/products/lineup/nikkor/zmount/nikkor_z_50mm_f18_s/spec.html",
  "mtf_url": "https://nij.nikon.com/products/lineup/nikkor/zmount/nikkor_z_50mm_f18_s/spec.html",
  "source_url": "https://nij.nikon.com/products/lineup/nikkor/zmount/nikkor_z_50mm_f18_s/spec.html",
  "retrieved_at": "2026-07-24",
  "amazon_url": "https://www.amazon.co.jp/dp/B07GTYPQZ3",
  "product_url": "https://nij.nikon.com/products/lineup/nikkor/zmount/nikkor_z_50mm_f18_s/"
}