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validate warning on Panasonic makernotes

Started by olball, November 11, 2018, 05:01:22 AM

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olball

Hi Phil,

using exiftool -validate -error -warning -a I'm getting a warning on some makernote tags on image files from Panasonic cameras.

Warning                         : [minor] Undefined value for MakerNotes:InternalNDFilter
Warning                         : [minor] Undefined value for MakerNotes:ClearRetouchValue


Both tags contain a rational64u value of 0/0. Excerpt from exiftool -v3 on this file:

  | | | 110) InternalNDFilter = undef (0/0)
  | | |     - Tag 0x009d (8 bytes, rational64u[1]):
  | | |         115a: 00 00 00 00 00 00 00 00                         [........]
<snip>
  | | | 116) ClearRetouchValue = undef (0/0)
  | | |     - Tag 0x00a3 (8 bytes, rational64u[1]):
  | | |         116a: 00 00 00 00 00 00 00 00                         [........]


So the question is: is the warning real and 0/0 is not allowed or is the warning a wrong positive one?

TIA

Phil Harvey

All makernote errors are minor because the manufacturer is free to do whatever they want.  However, ExifTool will warn if there is anything that deviates from the EXIF/TIFF specification if the maker notes are EXIF/TIFF format.

- Phil
...where DIR is the name of a directory/folder containing the images.  On Mac/Linux/PowerShell, use single quotes (') instead of double quotes (") around arguments containing a dollar sign ($).