Professional wide-angle lens with an ultra-large maximum aperture of f/1.4. This is the first EF lens to employ both a replicated aspherical lens element to suppress distortion and spherical aberration, and a UD lens element to correct lateral chromatic aberration. Thanks to the floating construction, excellent corner-to-corner delineation is attained from 10 in. (25 cm) to infinity.
|Construction||9 groups /11 elements|
|Angle of view||84°|
|F stop range||1.4 - 22|
|Closest Focusing Distance||0.25m / 0.82 ft.|
|Dimensions (Length x Diameter)||3.3" x 3.1" / 83.5 x 77.4mm|
|Weight||19.4 oz. / 550g|