The Sigma 30mm fits allegedly also on full frame. See Product Video Sigma 30mm 1.4 type on "You Tube" by Christopher Frost Photography. The sequence where he tested the lens on a Canon EOS 6D full-frame camera comes at the end of 1 minute of video. He recommends only the aperture to 2.8 to shrink, so that the edges disappear in full-frame. Have the 30mm Sigma received yesterday and immediately tested on my EOS 60D. I could not detect any errors Focus. The lens is in perfect harmony with the body of the 60D and the images are very sharp and full color. The build quality of the Sigma 30mm is absolutely high quality. The quite decent weight of the lens ensures a perfect balance between body and lens and is very comfortable to hold. I highly recommend this lens for crop cameras definitely. No comparison to the 28mm or 35mm fixed focal length lenses from Canon. Here Sigma has clearly ahead.
