{
  "slug": "sigma-50-2-dgdn",
  "name": "50mm F2 DG DN | Contemporary",
  "category": "lens",
  "specs": {
    "maker": "シグマ",
    "released": "2023-04",
    "mount": "ソニーE / ライカL",
    "format": "フルフレーム",
    "focal_length": "50mm",
    "max_aperture": "f/2",
    "elements": "9群11枚",
    "blades": 9,
    "min_focus_m": 0.45,
    "max_magnification": "0.14倍",
    "stabilization": "なし",
    "filter_mm": 58,
    "weight_g": 345,
    "size_mm": "70x70",
    "price_range": "約9万円前後"
  },
  "summary": "IシリーズのContemporaryラインに加わった標準50mm。345gの金属鏡筒に絞りリングを備え、SLD1枚・非球面3枚で開放F2からキレのある描写を狙っている。大口径Artと違い、携行性重視でフルサイズ機に常用付けするための一本。",
  "amazon_query": "シグマ 50mm F2 DG DN Contemporary ソニーE",
  "construction_url": "https://www.sigma-global.com/jp/lenses/c023_50_2_re/?tab=construction",
  "mtf_url": "https://www.sigma-global.com/jp/lenses/c023_50_2_re/?tab=construction",
  "source_url": "https://www.sigma-global.com/jp/lenses/c023_50_2_re/",
  "retrieved_at": "2026-07-24",
  "product_url": "https://www.sigma-global.com/jp/lenses/c023_50_2_re/"
}