A 100GB SD card will hold around 95,000 photos.
Duplicate photos can be a pain to deal with, but there are a few ways to manage them. One option is to use a photo management app like iCloud or Google Photos, which can automatically delete duplicates. Another option is to use a photo-sharing service like Flickr or Facebook, where you can post one copy of the photo and ask friends to share their copies too. Finally, you can simply keep track of which photos you’ve already shared and delete the duplicate versions.
