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Image-ExifTool
Posted on 2008-07-13 20:06:07-07 by justin in response to 8288
Re: Problem Setting FileModifyDate

Hi Phil, yes I did delete the other 13 results to keep the post smaller. As you suspected the problem was a pearl/windows DST issue, I used XnView to set the file modified date on the jpg files I was working on earlier. However, it could not cope with the 3 NEF files I have from 2007 so I have performed the tests you suggested and the results are below:

D:\Photos\Library\2007\03\25>exiftool -alldates -fileModifyDate -s -G1 * ======== 2007-03-25_D50_DSC_4513.NEF [ExifIFD] DateTimeOriginal : 2007:03:25 18:35:16 [ExifIFD] CreateDate : 2007:03:25 18:35:16 [IFD0] ModifyDate : 2007:03:25 18:35:16 [File] FileModifyDate : 2007:03:25 19:35:16 ======== 2007-03-25_D50_DSC_4514.NEF [ExifIFD] DateTimeOriginal : 2007:03:25 18:35:37 [ExifIFD] CreateDate : 2007:03:25 18:35:37 [IFD0] ModifyDate : 2007:03:25 18:35:37 [File] FileModifyDate : 2007:03:25 19:35:37 ======== 2007-03-25_D50_DSC_4515.NEF [ExifIFD] DateTimeOriginal : 2007:03:25 18:35:59 [ExifIFD] CreateDate : 2007:03:25 18:35:59 [IFD0] ModifyDate : 2007:03:25 18:35:59 [File] FileModifyDate : 2007:03:25 19:35:59 3 image files read D:\Photos\Library\2007\03\25>exiftool "-filemodifydate-=1" -v3 * Shifting File:FileModifyDate if tag exists ======== 2007-03-25_D50_DSC_4513.NEF ======== 2007-03-25_D50_DSC_4514.NEF ======== 2007-03-25_D50_DSC_4515.NEF 0 image files updated 3 image files unchanged D:\Photos\Library\2007\03\25>exiftool -alldates -fileModifyDate -s -G1 * ======== 2007-03-25_D50_DSC_4513.NEF [ExifIFD] DateTimeOriginal : 2007:03:25 18:35:16 [ExifIFD] CreateDate : 2007:03:25 18:35:16 [IFD0] ModifyDate : 2007:03:25 18:35:16 [File] FileModifyDate : 2007:03:25 19:35:16 ======== 2007-03-25_D50_DSC_4514.NEF [ExifIFD] DateTimeOriginal : 2007:03:25 18:35:37 [ExifIFD] CreateDate : 2007:03:25 18:35:37 [IFD0] ModifyDate : 2007:03:25 18:35:37 [File] FileModifyDate : 2007:03:25 19:35:37 ======== 2007-03-25_D50_DSC_4515.NEF [ExifIFD] DateTimeOriginal : 2007:03:25 18:35:59 [ExifIFD] CreateDate : 2007:03:25 18:35:59 [IFD0] ModifyDate : 2007:03:25 18:35:59 [File] FileModifyDate : 2007:03:25 19:35:59 3 image files read D:\Photos\Library\2007\03\25>

Many thanks for your help! Justin..

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