What is Exif
Exif stands for Exchangeable Image File Format, created by JEITA to store metadata in image formats such as JPEG and TIFF. It contains details about the device, shooting settings, and more.
Common Exif Data
| Category | Example |
|---|---|
| Device Info | Camera model, manufacturer (e.g., Canon EOS 80D) |
| Shooting Parameters | Aperture f/2.8, Shutter 1/200s, ISO 100 |
| Time Info | Date taken, Modified time |
| Location Info | GPS coordinates (latitude, longitude) |
Use Cases of Exif
- Photo Management: Organize by time, location, or device.
- Photography Learning: Study aperture, shutter, ISO settings.
- Forensics: Validate authenticity in legal or journalism contexts.
Exif Privacy Risks
Since Exif may contain GPS location, uploading without removing it could expose your whereabouts.
Viewing and Editing Exif
Ways to access Exif data include:
- Windows: Right click → Properties → Details.
- macOS: Preview app metadata viewer.
- Online Tools:
- Exif Viewer: Instantly view Exif data.
- Exif Auto Orient: Fix photo orientation automatically.