No matching tags for Nikon NEF creation time

Hi,

I wanted to rename all my Nikon NEF files to start with the creation date. But once the image was modified, unfortunately none of the tags available use the "real" date the image was taken.

Found a solution, if someone else has the problem:
1.) Rename the images with the tag <ExifTool:CreateDate> in front of your file name
This gives you a filename including hour, min, and sec.
2.) To get rid of this, use a second method to delete 8 characters starting at the 12th character.

This creates a filename like: 2015_11_19 DSC1234.nef

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