The way to get Canon literature is to call their consumer information center at (800) 828 4040 and ask for it! There is an EOS system brochure which covers the current EOS cameras, lenses and accessories. Canon will also provide some camera and accessory instruction manuals on request (some may be free, others you may have to pay for). Exactly what is available changes from time to time so ask. "Send me everything you have on the Canon Elan II" isn't an unreasonable request.