adapter-components.schema.json¶

Defines the product-information blocks shared by mount adapters. It is a collection of definitions referenced by adapter-full, not a schema that validates a standalone JSON file.

Definition groups¶

See Shared definitions for smaller definitions such as IDs, strings, region codes, and language tags.

Examples of shared blocks¶

The following examples show where the blocks appear in the canonical record for the Mount Adapter FTZ II. Each code sample extracts only the blocks or array elements needed for the explanation from the actual canonical record.

{
  "identity": {
    "manufacturerId": "nikon",
    "brandId": "nikon",
    "productName": "Mount Adapter FTZ II",
    "modelNumberOptions": null,
    "alternateNames": [
      {
        "name": "マウントアダプター FTZ II",
        "region": "JP",
        "language": "ja"
      }
    ],
    "variants": null
  },
  "lifecycle": {
    "announcementDate": "2021-10-28",
    "officialDesignations": []
  }
}

{
  "officialProductPages": [
    {
      "url": "https://nij.nikon.com/products/lineup/accessory/body/ftz_2/index.html",
      "pageFamilies": [
        "nikon-imaging-japan"
      ],
      "region": "JP",
      "language": "ja",
      "publisher": {
        "type": "manufacturer-or-brand",
        "name": "Nikon"
      }
    }
  ]
}

{
  "mountConfigurations": [
    {
      "lensSideMountSystemId": "nikon-f",
      "cameraSideMountSystemId": "nikon-z",
      "lensRetention": null,
      "lensRearProtrusionLimits": null
    }
  ],
  "electronics": {
    "electronicContacts": true,
    "autofocus": true,
    "cameraControlledAperture": true,
    "lensStabilizationCommunication": true,
    "manualFocusAssistance": true,
    "metadataTransmission": {
      "present": true,
      "standards": [
        "exif"
      ]
    },
    "lensPowerTransmission": null,
    "recordingTriggerTransmission": null
  },
  "electronicServices": null,
  "conversionOptics": {
    "present": false
  },
  "mechanisms": []
}

{
  "physical": {
    "dimensionMeasurements": [
      {
        "widthMm": 70,
        "heightMm": 70,
        "lengthMm": 36,
        "approximate": true,
        "conditions": {
          "excludesProjections": true
        }
      }
    ],
    "weightMeasurements": [
      {
        "grams": 125,
        "approximate": true,
        "conditions": {}
      }
    ],
    "officialEnvironmentalProtectionClaims": [
      {
        "types": [
          "dust-resistant",
          "drip-resistant"
        ],
        "scope": {
          "kind": "product"
        },
        "conditions": {}
      }
    ],
    "tripodSupport": {
      "present": false
    }
  }
}

Identity¶

All six fields directly under identity are required. Even when model numbers, alternate names, or variants cannot be confirmed from accepted published evidence, do not omit their fields. Record null instead. See the shared definition of modelNumberOptions for which identifiers are treated as model numbers.

Release information¶

announcementDate and officialDesignations are required. Do not use a development-announcement date for announcementDate.

officialDesignations: [] does not mean that the product is currently sold, in stock, or available.

Official product page¶

Every entry in officialProductPages[] has five fields directly under it: url, pageFamilies, region, language, and publisher.

Both publisher.type and publisher.name are required within publisher.

Mount configurations¶

mountConfigurations must contain at least one entry. Duplicate entries are not allowed.

lensSideMountSystemId cannot be nikon-z. Repository validation checks that both mount system IDs are registered and that variantId references an ID in identity.variants.

Electronic functions¶

electronics is an object or null. When it is an object, all eight fields directly under it are required. Each value describes a function confirmed for the adapter product. It does not guarantee operation with every combination of lens, camera, and firmware.

When electronicContacts is false, the other seven fields must also contain confirmed negative values. Firmware updates and configuration connections are recorded in the shared electronicServices definition. This separation also represents USB or dock services that do not use lens contacts.

Conversion optics¶

The structure of conversionOptics depends on what has been confirmed about the presence of conversion optics.

When present is false, do not record optical specifications other than present. When it is true, all seven fields are required. Record null for an individual field not established by accepted published evidence. For an image-circle range, repository validation also checks that minimumDiameterMm does not exceed maximumDiameterMm.

Additional mechanisms¶

mechanisms is an array of objects describing the confirmed additional mechanisms without duplicates, or null.

After checking the collection of additional mechanisms, use [] when there are no applicable mechanisms and null when they cannot be confirmed from accepted published evidence. Shift, tilt, and rotation mechanisms require movements, which can contain only the corresponding measurement type. Use movements.shiftMeasurements for shift, movements.tiltMeasurements for tilt, and movements.rotationMeasurements for rotation. Use movements: null when the mechanism is established but its nominal range is not. Do not use a movements object whose corresponding measurement field is null. Other mechanism types omit movements. Record lens retention under the applicable mountConfigurations[].lensRetention instead of mixing it with additional mechanisms.

Dimensions, weight, environmental-protection claims, and tripod support¶

dimensionMeasurements, weightMeasurements, officialEnvironmentalProtectionClaims, and tripodSupport are all required directly under physical.

measurementComponentStates records only components explicitly addressed by the source, using boolean values under tripodCollarAssembly, tripodFoot, tripodMountCover, lensHood, frontCap, rearCap, or dropInFilter. Each dimension entry must contain at least one of maximumDiameterMm, lengthMm, widthMm, heightMm, or unclassifiedDimensionsMm. When tripodSupport.present is false, the object contains only present.

Related pages¶

• Shared definitions: Smaller definitions such as IDs, strings, region codes, and language tags
• adapter-full: Structure of one product assembled from these definitions
• Mount adapter field reference: Descriptions of each block using actual data

JSON Schema file