{
  "kind": "observed-camera-viewer-reads",
  "schema": 1,
  "checkedOn": "2026-10-28",
  "environment": "In-app browser session; browser version not recorded. Four files chosen in the viewer; JSON actually downloaded and independently compared with the pinned-file reader reference.",
  "scope": "Recorded file reads, not a live check of this visitor browser or certification of devices, RAW, editing, vendor counters or privacy. Source and metadata-reduced published derivative are separate. Only technical allowlisted values and field names are public; original coordinates, dates, identifiers and MakerNotes are excluded.",
  "observations": [
    {
      "id": "olympus-e-m10",
      "variant": "original",
      "sha256": "ad9a5971aae8e936031ff3c362ecee16aab42332672646f8a5f19a168a651fbe",
      "fieldNames": [
        "ApplicationRecordVersion",
        "Artist",
        "Author",
        "ColorSpace",
        "ComponentsConfiguration",
        "Contrast",
        "Copyright",
        "CreateDate",
        "CustomRendered",
        "DateTimeOriginal",
        "DigitalZoomRatio",
        "ExifImageHeight",
        "ExifImageWidth",
        "ExifVersion",
        "ExposureCompensation",
        "ExposureMode",
        "ExposureProgram",
        "ExposureTime",
        "FNumber",
        "FileSource",
        "Flash",
        "FlashpixVersion",
        "FocalLength",
        "GPSAltitude",
        "GPSAltitudeRef",
        "GPSDateStamp",
        "GPSImgDirection",
        "GPSImgDirectionRef",
        "GPSLatitude",
        "GPSLatitudeRef",
        "GPSLongitude",
        "GPSLongitudeRef",
        "GPSMapDatum",
        "GPSTimeStamp",
        "GPSVersionID",
        "GainControl",
        "ISO",
        "ImageDescription",
        "InteropIndex",
        "InteropVersion",
        "LensInfo",
        "LensModel",
        "LightSource",
        "Make",
        "MaxApertureValue",
        "MeteringMode",
        "Model",
        "ModifyDate",
        "Orientation",
        "PrintIM",
        "ResolutionUnit",
        "Saturation",
        "SceneCaptureType",
        "SensitivityType",
        "Sharpness",
        "Software",
        "SpecialInstructions",
        "WhiteBalance",
        "XResolution",
        "YCbCrPositioning",
        "YResolution",
        "latitude",
        "longitude",
        "makerNote",
        "userComment"
      ],
      "technicalValues": {
        "Make": "OLYMPUS IMAGING CORP.",
        "Model": "E-M10",
        "Software": "Version 1.3",
        "Orientation": "Horizontal (normal)",
        "ExposureTime": "0.01",
        "FNumber": "3.5",
        "ISO": "200",
        "FocalLength": "17",
        "LensModel": "LUMIX G VARIO 12-35/F2.8"
      },
      "matchesReference": true
    },
    {
      "id": "olympus-e-m10",
      "variant": "published",
      "sha256": "68f58a939647fe50a407cac8050a1ff2d5c9fcdd23e5ede84b16de5c5dad741f",
      "fieldNames": [
        "Artist",
        "ColorSpace",
        "Copyright",
        "ExifImageHeight",
        "ExifImageWidth",
        "ExifVersion",
        "ExposureCompensation",
        "ExposureMode",
        "ExposureProgram",
        "ExposureTime",
        "FNumber",
        "Flash",
        "FlashpixVersion",
        "FocalLength",
        "ISO",
        "LensModel",
        "LightSource",
        "Make",
        "MaxApertureValue",
        "MeteringMode",
        "Model",
        "Orientation",
        "ResolutionUnit",
        "SceneCaptureType",
        "Software",
        "WhiteBalance",
        "XResolution",
        "YResolution"
      ],
      "technicalValues": {
        "Make": "OLYMPUS IMAGING CORP.",
        "Model": "E-M10",
        "Software": "Version 1.3",
        "Orientation": "Horizontal (normal)",
        "ExposureTime": "0.01",
        "FNumber": "3.5",
        "ISO": "200",
        "FocalLength": "17",
        "LensModel": "LUMIX G VARIO 12-35/F2.8"
      },
      "matchesReference": true
    },
    {
      "id": "sony-a7-iv",
      "variant": "original",
      "sha256": "03a409eb2b950b1fc308f5211635a037e637538910b6f5e8afd809616f608131",
      "fieldNames": [
        "BrightnessValue",
        "ColorSpace",
        "ComponentsConfiguration",
        "CompositeImage",
        "CompressedBitsPerPixel",
        "Contrast",
        "CreateDate",
        "CustomRendered",
        "DateTimeOriginal",
        "DigitalZoomRatio",
        "DocumentID",
        "ExifImageHeight",
        "ExifImageWidth",
        "ExifVersion",
        "ExposureCompensation",
        "ExposureMode",
        "ExposureProgram",
        "ExposureTime",
        "FNumber",
        "FileSource",
        "Flash",
        "FlashpixVersion",
        "FocalLength",
        "FocalLengthIn35mmFormat",
        "ISO",
        "InstanceID",
        "InteropIndex",
        "InteropVersion",
        "LensInfo",
        "LensModel",
        "LightSource",
        "Make",
        "MaxApertureValue",
        "MeteringMode",
        "Model",
        "ModifyDate",
        "OffsetTime",
        "OffsetTimeDigitized",
        "OffsetTimeOriginal",
        "Orientation",
        "PrintIM",
        "Rating",
        "RecommendedExposureIndex",
        "ResolutionUnit",
        "Saturation",
        "SceneCaptureType",
        "SceneType",
        "SensitivityType",
        "Sharpness",
        "Software",
        "SubSecTime",
        "SubSecTimeDigitized",
        "SubSecTimeOriginal",
        "WhiteBalance",
        "XResolution",
        "YCbCrPositioning",
        "YResolution",
        "makerNote",
        "userComment"
      ],
      "technicalValues": {
        "Make": "SONY",
        "Model": "ILCE-7M4",
        "Software": "ILCE-7M4 v6.00",
        "Orientation": "Horizontal (normal)",
        "ExposureTime": "0.01",
        "FNumber": "4",
        "ISO": "640",
        "FocalLength": "70",
        "LensModel": "FE 24-70mm F4 ZA OSS"
      },
      "matchesReference": true
    },
    {
      "id": "sony-a7-iv",
      "variant": "published",
      "sha256": "b34d5e13bbb4ace66018da99bd1a36fb73185955abc5805aa59bf92f3632a27d",
      "fieldNames": [
        "Artist",
        "ColorSpace",
        "Copyright",
        "ExifImageHeight",
        "ExifImageWidth",
        "ExifVersion",
        "ExposureCompensation",
        "ExposureMode",
        "ExposureProgram",
        "ExposureTime",
        "FNumber",
        "Flash",
        "FlashpixVersion",
        "FocalLength",
        "FocalLengthIn35mmFormat",
        "ISO",
        "LensModel",
        "LightSource",
        "Make",
        "MaxApertureValue",
        "MeteringMode",
        "Model",
        "Orientation",
        "ResolutionUnit",
        "SceneCaptureType",
        "Software",
        "WhiteBalance",
        "XResolution",
        "YResolution"
      ],
      "technicalValues": {
        "Make": "SONY",
        "Model": "ILCE-7M4",
        "Software": "ILCE-7M4 v6.00",
        "Orientation": "Horizontal (normal)",
        "ExposureTime": "0.01",
        "FNumber": "4",
        "ISO": "640",
        "FocalLength": "70",
        "LensModel": "FE 24-70mm F4 ZA OSS"
      },
      "matchesReference": true
    }
  ]
}