Lightroom: GPS Data in RAW and DNG Files

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  • Updated 5 months ago
  • (Edited)
I fully understand how to add and edit GPS metadata either in Bridge, Lightroom or a third party application and have been doing this successfully for quite some time.

I have just bought a Canon EOS 5D Mk iv which has built in GPS and auto tags images (provided that the function is turned on.)

With RAW images which have been tagged by the camera, it seems impossible to edit and save changes to the GPS metadata in Bridge or Lightroom successfully (why would i want to is a different question but largely because it lacks accuracy some of the time.)

Edited data is recorded in the associated XMP file, but Bridge is reading the original data from the image itself, and ignoring the XMP file.

One solution is to convert the images to DNG before making edits then there is no problem with editing and saving the metadata.

Using DNG files creates one issue.  Namely that, should the original RAW file be extracted from the DNG in the future, it contains the ORIGINAL metadata and not the EDITED version.

Consequently DNG and RAW images have different GPS metadata which is potentially confusing.

I can't see a solution to this.

It's not a major issue but something perhaps to be aware of.

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Peter Astle

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Posted 1 year ago

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John R. Ellis, Champion

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"but Bridge is reading the original data from the image itself, and ignoring the XMP file."

Did you set the Bridge preference Save Image Settings In: Sidecar .XMP Files?
http://help.adobe.com/en_US/creativesuite/cs/using/WSCA4C914B-B11F-46c6-ACE5-42F36ED1C7BC.html#WSD94... 
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John R. Ellis, Champion

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When I tried last week, it appeared that Bridge saved and read the GPS fields from the .xmp sidecar (when that option was set).  I'll try it again in my configuration to make sure.

Meanwhile, perhaps you can provide a step-by-step recipe for reproducing the problem, to make sure we're looking at the same thing.
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Peter Astle

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Please may I stress that this issue is only apparent in images which have previously been geotagged in camera (Canon EOS 5D Mk iv in my case) before being processed in Adobe software. For images which have no geotagg data there is no issue at all - everything works as expected.
I have just applied my usual routine with a new set of images (Canon CR2 format)
Here is all that I am doing:

  1. Import images into Adobe Bridge CC
  2. Drag images into Lightroom CC
  3. Display images in Lightroom Map Module
  4. For any images which are not displayed in precisely the correct location, drag onto correct location on map. Coordinates are then correctly updated in Lightroom )
  5. Select corrected images in Lightroom Library Module
  6. Select Metadata Tab and Save Metadata to Files (or Ctrl + S) (Lighroom shows the save taking place.)
  7. Examine the images in Bridge - new GPS coordinates are not show, the original coordinates and elevation data are retained. 
I tried re-caching the images to no avail.
I checked with Exif tool to find that the GPS coordinates have been updated in the XMP files but NOT in the original image files. I must conclude that for any images containing GPS coordinates generated by the camera, Bridge is reading the data from the original file and ignoring the data in the XMP file (or the original file data overrides the XMP file data.)
I mentioned before that this problem disappears completely if the CR2 files are first converted to DNG before doing any of the above steps. The only issue with this approach is that the DNG images then contain different GPS data to the embedded RAW files.  I can live with this, but it is nonetheless an issue.
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John R. Ellis, Champion

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I'll take a close look at this late tonight.
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Peter Astle

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John,
Were you ever able to shed any light on this issue.  Problem still remains.
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John R. Ellis, Champion

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Looks like this dropped from my radar.  I'll try to look at it next week after I return from a trip.