I dont think Miranda will work on your Canon. Not easily anyway. You want to be able to use a cheap adapter that doesnt have any correction glass in it to degrade your photo. You basically want your adapter to be nothing more then a spacer (with no glass in it). So that means you have to use a lens that originally had a
flange to focal distance that is greater then your Canon flange to focal distance. This is not as complicated as it sounds.
Go here
http://en.wikipedia.org/wiki/Flange_focal_distance
Look down toward the bottom of the list and you will see the FtF distance of your Canon EOS EF as 44.4mm. You can basically use any lens that is listed
lower on the list with a basic adapter. That means those are the lenses with a flange to focal distance GREATER then your camera. So you are looking at the following...
Pentax (ranges from decent to very, very good)
M42 (from crappy to super excellent...need to know your glass)
Contax/Yashica (Contax glass by Zeiss...Amazing. Yashica ML glass...Amazing)
Olympus OM (from decent to Very, very good...some amazing)
Nikon (Excellent glass, some dogs but mostly very good)
Leica R (VERY nice to Amazing excellent...VERY expensive compared to lenses that can do the same thing for less)
Keep in mind that there are third party lenses made in these mounts (like Tokina, Sigma, and other crappier brands). Generally stay away from these and stick with the named lenses. However, Tamron adaptall lenses in these mounts have some excellent offerings.
The others listed under Canon on that list dont worry about. They are movie or cine lenses and that is a whole other discussion. Take a look at where the Sony E mount is on that list.....way at the top. That is why I shoot NEX. I can use almost
every lens on that list with the proper adapter.
I told you, MF lenses are a journey of discovery. It may seem overwhelming because the amount of info to absorb is so high. But just try out a lens or two and see if its for you. Soon you may find yourself with a small (or large!) collection of old lenses that you cherish and use to create amazing photography.