Longer answer... Yes, but...
Canon did make an adapter but very few were made and they only work with certain lenses plus it sells sky high now if you can locate a copy. After market adapters are more common and B&H has them now (a friend bought one from them a few weeks ago) and I picked one up off ebay a couple years ago. The quality is reduced some with the adapter but it is usable.
You will have a hard time focusing since the auto-indicator lights won't work and you lack the pentaprism (Is that it?) but it can be done.
I paid about $30 for the adapter shipped. Not sure what B&H gets for them.