SonyMirrorlessHidden metadata
Sony A7M4 EXIF Data Guide
A practical field-by-field EXIF checklist for Sony A7M4 originals.
Use this checklist to inspect the metadata retained in your file. Fields vary by file and export method; EXIF alone cannot prove authenticity or a lifetime shutter count.
Best EXIF fields to check on Sony A7M4
The most reliable input is an untouched original JPEG copied directly from the camera or card.
| Field | Why it matters |
|---|---|
| Make | Device manufacturer recorded in the file; this value can be edited. |
| Model | Recorded camera model. Compare it with the expected device; it is not proof of origin. |
| SerialNumber | Device serial identifier when available. Consider removing it before public sharing. |
| DateTimeOriginal | Capture date and time from the device clock; check clock accuracy and time zone separately. |
| ExposureTime | Exposure duration in seconds, such as 1/250. This is not a lifetime shutter count. |
| ShutterSpeedValue | Shutter speed stored on the APEX scale; a viewer may convert it to seconds. It is not shutter count. |
| ISO | Recorded ISO sensitivity setting for the exposure. |
| LensModel | Recorded lens name; it may be absent when the lens or export does not supply it. |
| Software | Software or firmware recorded in the file. Its presence alone does not prove editing. |
Best file type to inspect
The most reliable input is an untouched original JPEG copied directly from the camera or card.
Privacy reminder
Even dedicated cameras can leave timestamps, gear details, and software traces in the file, so review them before publishing.