# blue.flashes.photo.exif

> Published by [flashes.blue](https://lexicon.garden/identity/did:plc:24kqkpfy6z7avtgu3qg57vvl)

✓ This is the authoritative definition for this NSID.

## Links

- [View on Lexicon Garden](https://lexicon.garden/lexicon/did:plc:24kqkpfy6z7avtgu3qg57vvl/blue.flashes.photo.exif)
- [Documentation](https://lexicon.garden/lexicon/did:plc:24kqkpfy6z7avtgu3qg57vvl/blue.flashes.photo.exif/docs)
- [Examples](https://lexicon.garden/lexicon/did:plc:24kqkpfy6z7avtgu3qg57vvl/blue.flashes.photo.exif/examples)

## Definitions

### `blue.flashes.photo.exif`

**Type**: `record`

EXIF metadata for a photo. Stored as a sidecar record using the post rkey with an image index suffix (e.g. '3lqbc5xyz-0'). Float values are stored as strings to avoid precision issues.

**Key**: `any`

| Property | Type | Required | Description |
|----------|------|----------|-------------|
| `iso` | `integer` | No | ISO speed rating (e.g. 100, 800, 3200) |
| `make` | `string` | No | Camera manufacturer (e.g. 'Canon', 'Sony') |
| `post` | `string` (at-uri) | Yes | Reference to the parent post record |
| `flash` | `string` | No | Flash status description (e.g. 'On, Fired', 'Off, Auto') |
| `model` | `string` | No | Camera model (e.g. 'EOS R5', 'A7 IV') |
| `fNumber` | `string` | No | Aperture f-number as a decimal string (e.g. '2.8', '5.6') |
| `lensMake` | `string` | No | Lens manufacturer |
| `software` | `string` | No | Camera firmware or editing software |
| `createdAt` | `string` (datetime) | Yes |  |
| `lensModel` | `string` | No | Lens model (e.g. 'RF 50mm F1.2 L USM') |
| `colorModel` | `string` | No | Color model (e.g. 'RGB', 'CMYK') |
| `imageIndex` | `integer` | Yes | Zero-based index of the image within the post's embed |
| `pixelWidth` | `integer` | No | Original image width in pixels |
| `focalLength` | `string` | No | Focal length in mm as a decimal string (e.g. '50.0', '24.0') |
| `orientation` | `integer` | No | EXIF orientation tag (1-8) |
| `pixelHeight` | `integer` | No | Original image height in pixels |
| `exposureTime` | `string` | No | Exposure time in seconds as a decimal string (e.g. '0.002', '1.5') |
| `dateTimeOriginal` | `string` (datetime) | No | Original capture timestamp from EXIF |
| `focalLengthIn35mmFormat` | `string` | No | 35mm equivalent focal length as a decimal string (e.g. '75.0', '36.0') |

## Raw Schema

```json
{
  "id": "blue.flashes.photo.exif",
  "defs": {
    "main": {
      "key": "any",
      "type": "record",
      "record": {
        "type": "object",
        "required": [
          "post",
          "imageIndex",
          "createdAt"
        ],
        "properties": {
          "iso": {
            "type": "integer",
            "description": "ISO speed rating (e.g. 100, 800, 3200)"
          },
          "make": {
            "type": "string",
            "maxLength": 256,
            "description": "Camera manufacturer (e.g. 'Canon', 'Sony')"
          },
          "post": {
            "type": "string",
            "format": "at-uri",
            "maxLength": 512,
            "description": "Reference to the parent post record"
          },
          "flash": {
            "type": "string",
            "maxLength": 128,
            "description": "Flash status description (e.g. 'On, Fired', 'Off, Auto')"
          },
          "model": {
            "type": "string",
            "maxLength": 256,
            "description": "Camera model (e.g. 'EOS R5', 'A7 IV')"
          },
          "fNumber": {
            "type": "string",
            "maxLength": 32,
            "description": "Aperture f-number as a decimal string (e.g. '2.8', '5.6')"
          },
          "lensMake": {
            "type": "string",
            "maxLength": 256,
            "description": "Lens manufacturer"
          },
          "software": {
            "type": "string",
            "maxLength": 256,
            "description": "Camera firmware or editing software"
          },
          "createdAt": {
            "type": "string",
            "format": "datetime"
          },
          "lensModel": {
            "type": "string",
            "maxLength": 256,
            "description": "Lens model (e.g. 'RF 50mm F1.2 L USM')"
          },
          "colorModel": {
            "type": "string",
            "maxLength": 64,
            "description": "Color model (e.g. 'RGB', 'CMYK')"
          },
          "imageIndex": {
            "type": "integer",
            "minimum": 0,
            "description": "Zero-based index of the image within the post's embed"
          },
          "pixelWidth": {
            "type": "integer",
            "minimum": 1,
            "description": "Original image width in pixels"
          },
          "focalLength": {
            "type": "string",
            "maxLength": 32,
            "description": "Focal length in mm as a decimal string (e.g. '50.0', '24.0')"
          },
          "orientation": {
            "type": "integer",
            "maximum": 8,
            "minimum": 1,
            "description": "EXIF orientation tag (1-8)"
          },
          "pixelHeight": {
            "type": "integer",
            "minimum": 1,
            "description": "Original image height in pixels"
          },
          "exposureTime": {
            "type": "string",
            "maxLength": 32,
            "description": "Exposure time in seconds as a decimal string (e.g. '0.002', '1.5')"
          },
          "dateTimeOriginal": {
            "type": "string",
            "format": "datetime",
            "description": "Original capture timestamp from EXIF"
          },
          "focalLengthIn35mmFormat": {
            "type": "string",
            "maxLength": 32,
            "description": "35mm equivalent focal length as a decimal string (e.g. '75.0', '36.0')"
          }
        }
      },
      "description": "EXIF metadata for a photo. Stored as a sidecar record using the post rkey with an image index suffix (e.g. '3lqbc5xyz-0'). Float values are stored as strings to avoid precision issues."
    }
  },
  "$type": "com.atproto.lexicon.schema",
  "lexicon": 1
}
```