1.11.5: Short "Camera Manufacturer" tag problem in TIFF

*** Please report new bugs here! ***

Moderators: xnview, Dreamer

cabanmichal
Posts: 1
Joined: Sat Jul 11, 2026 8:14 pm

1.11.5: Short "Camera Manufacturer" tag problem in TIFF

Post by cabanmichal »

XnView: MP 1.11.5 - 64 bit
OS: Mac 64bit (Apple Silicon)

When you set the EXIF:Make tag of a TIFF file to value shorter than 4 characters, XnView displays a garbage value for this tag.

Effect: Incorrect value of the Make tag is displayed and it is also preserved in JPG files converted from the affected TIFF files.

To reproduce:
  1. Set the EXIF:Make tag to value shorter than 4 characters, e.g. Fed (exiftool -EXIF:Make=Fed file.tif).
  2. View such file in XnView MP.
  3. Observe that "Camera Manufacturer" is not "Fed" but "N" (a garbage value). Exiftool reports correct value, Apple's preview reports correct value, tiffdump reports correct value.
  4. Convert affected TIFF file to a JPG using Batch convert.
  5. This garbage value is present also in created JPG image.
Actual behaviour (bug):
Values of EXIF:Make tag shorter than 4 characters are displayed incorrectly for TIFF files.

Expected behaviour:
Values of EXIF:Make tag (Camera Manufacturer) shorter than 4 characters are displayed correctly for TIFF files.
You do not have the required permissions to view the files attached to this post.