{
  "slug": "sony-e-20-28",
  "name": "E 20mm F2.8",
  "category": "lens",
  "specs": {
    "maker": "ソニー",
    "released": "2013-03",
    "mount": "ソニーE",
    "format": "APS-C",
    "focal_length": "20mm",
    "max_aperture": "f/2.8",
    "elements": "6群6枚",
    "blades": 7,
    "min_focus_m": 0.2,
    "max_magnification": "0.12倍",
    "stabilization": "なし",
    "filter_mm": 49,
    "weight_g": 69,
    "size_mm": "62.6x20.4",
    "price_range": "約3万円前後"
  },
  "summary": "35mm判換算30mm相当の扱いやすい画角を持つ、Eマウントレンズの中で最も薄い全長20.4mmの広角パンケーキレンズ。3枚の非球面レンズで歪曲や球面収差を補正し、画面周辺部まで高い描写性能を確保している。質量約69gと軽く、スナップや風景の常用レンズに向く。",
  "amazon_query": "ソニー E 20mm F2.8",
  "construction_url": "https://www.sony.jp/ichigan/products/SEL20F28/feature_1.html",
  "mtf_url": "https://www.sony.jp/ichigan/products/SEL20F28/feature_1.html",
  "source_url": "https://www.sony.jp/ichigan/products/SEL20F28/spec.html",
  "retrieved_at": "2026-07-24",
  "product_url": "https://www.sony.jp/ichigan/products/SEL20F28/"
}