This ultra-wide-angle lens has the shortest focal length in the L-series. Element 2 is an aspherical lens to correct distortion. Other aberrations such as astigmatism are also corrected, resulting in ideal image quality. The lens has a fixed, petal-type hood and a gelatin filter holder at the rear.
|Construction||10 groups /14 elements|
|Angle of view||114°|
|F stop range||2.8-22|
|Closest Focusing Distance||0.25m / 0.8 ft.|
|Filter Size||Rear Gel Holder|
|Dimensions (Length x Diameter)||3.0" x 3.5" / 77.0 x 89.0mm|
|Weight||1.2 lbs./ 560g|