Good question about the new "cine" lenses - does the image circle cover full frame? My gut feeling, without thorough research is that they would, given their match to equivalent focal length/apeture specs. A "t" stop (transmission equivalent to "f" stop) and focal length would lead me to believe that Canon are using existing optical tech and therefore full frame coverage. I cannot be sure. They already have an 85mm t1.6 and now a 14mm t3.1. I'm sure others can answer.