{
  "asOf": "2026-09-12",
  "source": "Computed from published camera mount flange focal distances",
  "adapters": [
    {
      "sourceSlug": "canon-ef",
      "sourceName": "Canon EF",
      "targetSlug": "sony-e",
      "targetName": "Sony E",
      "sourceFfdMm": 44,
      "targetFfdMm": 18,
      "adapterThicknessMm": 26
    },
    {
      "sourceSlug": "canon-ef",
      "sourceName": "Canon EF",
      "targetSlug": "canon-rf",
      "targetName": "Canon RF",
      "sourceFfdMm": 44,
      "targetFfdMm": 20,
      "adapterThicknessMm": 24
    },
    {
      "sourceSlug": "canon-ef",
      "sourceName": "Canon EF",
      "targetSlug": "nikon-z",
      "targetName": "Nikon Z",
      "sourceFfdMm": 44,
      "targetFfdMm": 16,
      "adapterThicknessMm": 28
    },
    {
      "sourceSlug": "canon-ef",
      "sourceName": "Canon EF",
      "targetSlug": "micro-four-thirds",
      "targetName": "Micro Four Thirds",
      "sourceFfdMm": 44,
      "targetFfdMm": 19.25,
      "adapterThicknessMm": 24.75
    },
    {
      "sourceSlug": "canon-ef",
      "sourceName": "Canon EF",
      "targetSlug": "fujifilm-x",
      "targetName": "Fujifilm X",
      "sourceFfdMm": 44,
      "targetFfdMm": 17.7,
      "adapterThicknessMm": 26.3
    },
    {
      "sourceSlug": "nikon-f",
      "sourceName": "Nikon F",
      "targetSlug": "sony-e",
      "targetName": "Sony E",
      "sourceFfdMm": 46.5,
      "targetFfdMm": 18,
      "adapterThicknessMm": 28.5
    },
    {
      "sourceSlug": "nikon-f",
      "sourceName": "Nikon F",
      "targetSlug": "canon-rf",
      "targetName": "Canon RF",
      "sourceFfdMm": 46.5,
      "targetFfdMm": 20,
      "adapterThicknessMm": 26.5
    },
    {
      "sourceSlug": "nikon-f",
      "sourceName": "Nikon F",
      "targetSlug": "nikon-z",
      "targetName": "Nikon Z",
      "sourceFfdMm": 46.5,
      "targetFfdMm": 16,
      "adapterThicknessMm": 30.5
    },
    {
      "sourceSlug": "sony-a-minolta-af",
      "sourceName": "Sony/Minolta A",
      "targetSlug": "sony-e",
      "targetName": "Sony E",
      "sourceFfdMm": 44.5,
      "targetFfdMm": 18,
      "adapterThicknessMm": 26.5
    },
    {
      "sourceSlug": "pentax-k",
      "sourceName": "Pentax K",
      "targetSlug": "sony-e",
      "targetName": "Sony E",
      "sourceFfdMm": 45.46,
      "targetFfdMm": 18,
      "adapterThicknessMm": 27.46
    },
    {
      "sourceSlug": "m42x1-screw-mount",
      "sourceName": "M42×1 screw mount",
      "targetSlug": "micro-four-thirds",
      "targetName": "Micro Four Thirds",
      "sourceFfdMm": 45.46,
      "targetFfdMm": 19.25,
      "adapterThicknessMm": 26.21
    },
    {
      "sourceSlug": "t-mount-t2",
      "sourceName": "T-mount / T2 (M42×0.75)",
      "targetSlug": "sony-e",
      "targetName": "Sony E",
      "sourceFfdMm": 55,
      "targetFfdMm": 18,
      "adapterThicknessMm": 37
    }
  ]
}