EXIF tag · ExifIFD

LensInfo

(4 rational values giving focal and aperture ranges, called LensSpecification by the EXIF spec.)

0xa432
Tag ID (42034 decimal)
ExifIFD
IFD / group
rational64u
Data type
EXIF
Table

What LensInfo means#

(4 rational values giving focal and aperture ranges, called LensSpecification by the EXIF spec.)

Read, write and remove it#

# read
exiftool -LensInfo photo.jpg
# write
exiftool -LensInfo="…" photo.jpg
# remove
exiftool -LensInfo= photo.jpg
# all files in a folder, as CSV
exiftool -csv -LensInfo -r ./photos > lens-info.csv

In Python with Pillow:

from PIL import Image
exif = Image.open("photo.jpg").getexif()
value = exif.get_ifd(0x8769).get(0xa432)  # LensInfo
print(value)

Frequently asked questions#

What is the EXIF tag ID of LensInfo?

0xa432 (42034 decimal), in the ExifIFD directory.

How do I see LensInfo in a photo?

Run exiftool -LensInfo photo.jpg, or open the file's info panel in Lightroom, Photoshop, Windows (Properties → Details) or macOS Preview (Tools → Show Inspector).

Last updated October 03, 2026 · How we calculate · Sources