I recently attempted to import my archive of 20000 photos into iPhoto - unfortunately I found out that some of the imported images were not photos but things I downloaded from the internet.
I would like to know how I can filter these images according to their Exif tags. I want to specify the cameras whose photos I want to keep - and the rest I want to delete. Is this possible using iPhoto / is there a script that will do this?
Any help is much appreciated.