| http://www.w3.org/ns/prov#value | - The 40mm is a favorite among videographers for its relatively wide aperture, wider frame, and supremely fast and accurate AF. Get one or the other, but you do not need both.here is an example of a tack-sharp image taken with the T3i and the same lens you are using:Visitor by TreyHolliday, on FlickrNotice how the edges of each of the moth's wings go out of focus?
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