Can I use LR to find duplicate image files and delete the duplicates? I unintentionally produced thousands of unwanted duplicates while I was merging three catalogs from different drives to create a master catalog and image folder. I started with roughly 44,000 files and ended up with about 88,000. I know I have "Copies" from intentional work I did so I do not want to delete these. However there are lots of duplicates indicated by a -2 in the file name like DSC3404-2.dng. I tried a Library search using *-2.dng but had no hits. Same result with -2.dng without the *.
I seems that my catalogs all merged successfully.
I'm afraid I may need to delete the master image folder and start over. I could use the most recent image folder with my master catalog and then go looking for the rest of the images on the other drives using import and the function to not import suspected duplicates. I hope someone has a more erudite way to delete the duplicates I made.
there is no dublicate image finder based on image comparison for Lightroom (as far as I know). You may try external apps if you need this kind of software.
All LR software compares (exif) metadata to find dublicates.
I use Lightroom Plugins - Duplicate Finder for Lightroom and I am happy with this one. There is also a plugin called teekesselchen, which I tried in an very early stage years ago (http://www.bungenstock.de/teekesselchen/).
There might be over plug-ins available, which I do not know.
For me, "-2.jpg" works when I set "Text" to "filename" and choose "ends with".