What EXIF stores
Cameras and phones attach a block of fields to each capture: body and lens model, shutter speed, aperture, ISO, focal length, the exact time, and a color space description.
Many devices also embed coordinates from location services. Some photos include orientation, software version, and thumbnails, all of which live in the same metadata block.
Why EXIF matters
For photographers, EXIF is a record of how a shot was made, which makes it useful for learning, sorting, and finding images later. Cataloging software relies on these fields heavily.
The same fields are a privacy consideration. Posting a photo with intact location and time data can disclose where you were and when, which is often unintended for public uploads.
- Camera, lens, and exposure settings
- Capture date and time, sometimes to the second
- GPS coordinates when location tagging is on
- Orientation and color profile information
EXIF and image processing
Metadata adds bytes, but usually only a small part of a photo's total size compared with pixel data. Editing programs often rewrite or drop fields during export, so check the output if a specific field matters.
Filekind converts and compresses images in the browser, and whether metadata survives a conversion depends on the format and path taken. Confirm the output file when exact metadata is required. Keeping a copy of the original alongside any processed version is the simplest way to preserve the full record.