Digital Zoom Ratio
How much the image was cropped and enlarged digitally. 0 or 1 means none.
- EXIF tag ID
- 0xA404
- Group
- Exposure
- Example
- 1 · 2.5
- Editable in EXIF Viewer
- Yes
What iPhone writes
Written when you pinch beyond the optical zoom steps. iPhone 'zoom' between modules is a crop.
What dedicated cameras write
Bodies with digital tele-converter write it.
How to view Digital Zoom Ratio on iPhone
Open the photo in Photos, tap Share, then View EXIF (EXIF Viewer’s action extension). The field is listed under “Exposure”. Tap Edit to change it, or select several photos in the app to change them all at once. Or drop the photo into the free online EXIF viewer.
Related tags
- Focal Length — The lens focal length in millimetres at the moment of capture, not adjusted for sensor size.
- Focal Length in 35mm Format — The focal length converted to a full-frame equivalent so different sensor sizes can be compared.