EXIF tag · IFD0

OriginalBestQualitySize

(called OriginalBestQualityFinalSize by the DNG spec)

0xc792
Tag ID (51090 decimal)
IFD0
IFD / group
int32u!
Data type
EXIF
Table

What OriginalBestQualitySize means#

(called OriginalBestQualityFinalSize by the DNG spec)

Read, write and remove it#

# read
exiftool -OriginalBestQualitySize photo.jpg
# write
exiftool -OriginalBestQualitySize="…" photo.jpg
# remove
exiftool -OriginalBestQualitySize= photo.jpg
# all files in a folder, as CSV
exiftool -csv -OriginalBestQualitySize -r ./photos > original-best-quality-size.csv

In Python with Pillow:

from PIL import Image
exif = Image.open("photo.jpg").getexif()
value = exif.get(0xc792)  # OriginalBestQualitySize
print(value)

Frequently asked questions#

What is the EXIF tag ID of OriginalBestQualitySize?

0xc792 (51090 decimal), in the IFD0 directory.

How do I see OriginalBestQualitySize in a photo?

Run exiftool -OriginalBestQualitySize 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