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EXIF Viewer by

Aperture Value

The aperture in APEX units (2 × log2 of the ƒ-number). Redundant with F-Number.

EXIF tag ID
0x9202
Group
Exposure
Example
1.66 (≈ ƒ/1.78)
Editable in EXIF Viewer
Yes

What iPhone writes

Written.

What dedicated cameras write

Written by most bodies.

How to view Aperture Value 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

  • F-Number (Aperture) — The lens aperture as an ƒ-stop. Smaller numbers mean a larger opening: more light and shallower depth of field.
  • Max Aperture Value — The lens's widest aperture at the focal length used, in APEX units.