– Ultra-wide-angle zoom lens for full-frame
– Dust and water sealed
– SWC coating
– ASC coating
– Fluorine coating
– One large diameter grinding aspheric lens, one large-diameter glass molded aspherical lens, two glass molded aspherical lens, one super UD lenses, one lens UD
資料來源
http://www.canonwatch.com/cw5-canon-ef-11-24mm-f4l-usm-image-and-specs-leaked/
http://digicame-info.com/2015/01/ef11-24mm-f4l-1.html
