Say a development team includes (or makes use of) graphic artists who create all the images that go into a product. Such things include icons, bitmaps, window backgrounds,
We keep the binary files and images in revision control, using Perforce. It's great!
We keep a lot of art assets, and it scales well for lots of large files. It recognizes binary files, the ones that can't be diffed, and stores them as full file copies in the back end.
It has P4V (cross-platform visual browser), and a thumbnail system so image files can be seen in the browser.