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I have just noticed my cameras date has been wrong for the last month. However it is consistently wrong, so if I work out (or guess) the date and time of the first photograph, is there a tool that will work out the correct date/time of the rest of the images?

mattdm
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Aidan
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    Windows, Mac, Linux? Do you own Photoshop or Lightroom? Have you seen http://photo.stackexchange.com/questions/7919/how-to-shift-exif-date-time-created-by-time-in-days-hours-minutes ? – dpollitt Jul 29 '13 at 19:09

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Yes — either ExifTool or Exiv2 will do this and can work on RAW files, including CR2. And they work on Linux, Mac, or Windows.

mattdm
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  • Do you know of a link with instructions on how to offset all Canon .CR2 files by a set amount (one hour) using ExifTool? – Michael C Dec 15 '17 at 09:47