Trouble with Silverfast TIFFs

[tony-s]

Greetings,

Long time user of exiftool but first post to the forums. I have encountered a problem with TIFFs from Silverfast 8 scans that prevent exiftool from working. After scanning negatives with my Nikon Coolscan IV ED, I run exiftool with these parameters:

exiftool -Make=Canon -Model="Canon EOS 3 Silvermax" -FocalLength=50 -ISO=100 -m 50mm

Here's the error message I get for every file in that folder:

Error: [minor] Maker notes could not be parsed - 50mm/silvermax 1.tif

However, if I open the files in Photoshop CS5 and Save As with the same name and as a TIFF, exiftool works just fine. Any suggestions around this problem?

Thanks!

Tony

[Phil Harvey]

Hi Tony,

Just add the -m option to the exiftool command to ignore this minor warning.  You don't get the warning on the Photoshop image because Photoshop deletes the maker notes.

- Phil

[tony-s]

Thank you, Phil. I do have the -m option in the line but it still generates the error.

Tony

[Phil Harvey]

Hi Tony,

I know of no way that Exiftool will generate a minor error when the -m option is used.  Looking at the code, this would seem to be an impossibility.

- Phil

[tony-s]

Thank you, Phil. So you suspect it's the TIFF implementation in Silverfast? If you would like a file for testing, I am happy to send you one.

Thanks,

Tony

[Phil Harvey]

Hi Tony,

The warning is issued whenever ExifTool encounters maker notes that it doesn't recognize.  In general I support most major camera makers, but can't possibly hope to cover everything.  In this case, -m is the thing to do.

- Phil