Originally posted by jlstrawman True. Just presenting all possibilities.
I for one appreciate the effort to give the OP a possible way to use his Canon lenses.
And I will prove my lack of sleep and coffee and remind that photography got along just fine without autofocus for 150 years. Prominent in many reviews are complaints that autofocus is slow, or noisy, or inaccurate, or was simply fooled by circumstance (yeah, I'm looking at you, Pentax). So in response, I'll propose Feb 30th to be Manual Focus Day, where photographers switch off autofocus, dial the shutter back from continuous to single, and actually look at the scene and twist both ways before gently pressing that button. Canon lenses can pull off this magic as well as any!