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RawTimeStamp (Time with Time Zone) format in CanonMakerNote

Last post 09 Sep 2008, 9:23 AM by RickM. 1 replies.
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  •  08 Jul 2008, 10:21 PM 14864

    RawTimeStamp (Time with Time Zone) format in CanonMakerNote

    Hi,

         Does anyone know what's the format of the exif tag "ExifTagID.CanonRawTimeStamp" in some Canon Raw digital camera's Exif information?  I found such tag from the ExifTagIfd.MakerNoteCanon in the parsed ExifCollection, but I'm not sure how to decode it properly.

     

    Thanks!

  •  09 Sep 2008, 9:23 AM 15546 in reply to 14864

    Re: RawTimeStamp (Time with Time Zone) format in CanonMakerNote

    This tag (0x180e) is used in Canon raw .CRW files. It should be a pair of 32-bit integers. The first of which gives the time (in seconds) of when the picture was taken and the second a 32-bit timezone (in seconds).

    The entire spec for CRW Exif is available here: http://owl.phy.queensu.ca/~phil/exiftool/canon_raw.html

    I'm not sure when you need to start counting from as the spec doesn't mention it.  It may be nessessary to peek inside of a freshly generated CRW file in order to find out.

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