I have all my photos prior to a certain date in an old iPhoto collection. Can anybody recommend a good way to get photos out of iPhoto without having to manually export thousands of photos?
If you‘re ok with just the raw files, right click the library and "Show Package Contents". Then sort by folder size to find the bulk of your photos or create a spotlight query that aggregates all images above a certain size from subfolders. If you edited a lot of photos, it might be messy. If you didn‘t, I think they are all in a folder called Originals, grouped by year then import session.