Undoing Geo-tagging

[Rhossydd]

So you select a group of photos and a GPS tracklog you want to auto tag photos from and instruct LR(5.7) to auto tag them.
Once the task is finished you discover that a lot are wrong*.
Is there any way of bulk removing the geo tags ?



Lost signals seem to have caused some problematic errors in my current case.

[Rhossydd]

<Later>
Looks like the only way is to select all the effected the files in the filmstrip and delete the GPS metadata field contents.

It would be nice if you could drag a file to the correct location to determine the correct time offset from the track and amend all other files on the same track, but I bet we won't see that feature in LR6

[jpegman]

You might try this product from the Photographers-Toolbox called "Tracklog Creator". It offers a free trial and is modestly priced at about $6
According to the author:
"This is not a replacement of Lightooms module "Auto-Tag" but an add-on.
Mainly, there are 2 use-cases for this plug-in:
    Missing GSP info is a common problem of cameras with built-in GPS. Further, you can't use Lightrooms "Auto-Tag" to automatically geotag these photos.
    To fix this, you are left to manually "Drag & drop" the photos in the Map module, but this is time consuming and error prone. A lot of work!
    What if you could reverse engineer the available GPS info into a tracklog.
    Then you could use "Auto-Tag" of the Lightrooms Map module to automatically geotag these photos!
    That is exact what this plug-in does: reverse engineer the GPS info of photos in Lightroom into a tracklog.
    Or you need a tracklog of your photos with GPS info in Lightoom.
    For example to visualize your tour / journey.
This plug creates a tracklog based on the GPS info of your photos.
Or with other words, this plug-in reverse engineers the available GPS info into a tracklog.

http://photographers-toolbox.com/products/lightroomstatistics/tracklogcreator/

Jpegman

[Rhossydd]

You might try this product from the Photographers-Toolbox called "Tracklog Creator".

That doesn't address the problem I have at all.
I've worked out a solution, as above.

It has highlighted to me again two holes in LR's feature set;
1. The ability to correct auto tagging in the Map module is lacking sufficient time resolution. It really should be able to offset by smaller time amounts than the big clunks currently possible to ensure maximum accuracy.
2. The lack of a global history for all modules as well develop and ability to selectively undo individual history stages. (I know there a few issues with the later, but it ought to be possible and many people would welcome it).