LR doesn’t do anything to the images on the SD card besides read them, assuming you did a Copy Import type.
I would guess the file system on the card is corrupted, which can happen if you power-off the device or pull the card out as the computer or camera is writing to it so the information in the files doesn’t match the information about the files in the folder directory on the card.
The images look that way in LR because the raw data isn’t what it’s supposed to be. As to why, it is unlikely LR had anything to do with it, and we can’t really guess what you might have done with the card since taking the imgaes. If the card is failing, perhaps it could cause the issues you’re seeing.
Thanks for the quick response. Yes correct it was a copy import.
Suspecting it is the card but no issues previously. I'm normally pretty good with removing the card safely etc. and I used the same process as I always do for importing..
New SD card for next time...
On another note, is there a way to permanently delete the files off the camera after import in LR? I recall it could be done very easily in Bridge..
Assuming this is out of the scope of this forum, but do you have any suggestions for potential tools to use that may help fix the corrupt files??
OK, managed to recover all .NEFs from the SD card using http://www.cgsecurity.org/wiki/PhotoRec
The filetype wasn't in the list of files to search/restore in that app but using TIFs as the filetype it managed to find the files.
Chucked the dodgy SD card in the bin. Thanks ssprengel
Imported the images back into Lightroom. The only minor issue is that the filenames are slightly different. All raw data, EXIF & metadata etc was restored.
NOTE: ensure you always safely remove SD cards! This was a pain to fix.
...On another note, is there a way to permanently delete the files off the camera after import in LR? I recall it could be done very easily in Bridge..
The only proper way to delete files off the camera is inside the camera itself. Use the menu on the camera to find "Format memory card". This will delete the files and properly reformat the card so that the camera will load new images correctly and LR will recognize it as a camera memory card. If you have not been doing this, it may be the reason the card has become corrupted. Try this to test if the card might work properly again.
You would normally want to format (low level if you want) your card in your camera to erase everything. The card isn’t where to store or backup images.