If you happen to use digiKam for managing photos scanned from negatives, you'll appreciate the application's capabilities to add and edit EXIF metadata. Using digiKam's dedicated interface for managing metadata, you can add key EXIF values, such as maker, device model, aperture, shutter speed, ISO, focal length, etc., to the scanned photos (provided you have these data handy).
However, digiKam doesn't allow you to apply the same EXIF data to multiple photos in a single operation.
This is a companion discussion topic for the original entry at https://www.digikam.org/news/2013-08-07_apply_exif_metadata_to_multiple_photos_in_digikam/