Canon EF 14mm f/2.8L USM Black

EF 14mm f/2.8L USM Features
-Lens construction: 14 elements in 10 groups;
-Diagonal angle of view: 114°;
-Focus adjustment: Rear focusing system with USM;
-Closest focusing distance: 0.25m / 0.8ft;
-Filter size: Rear drop-in gelatin filter holder;

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 idea image quality.
The lens has a fixed petal-type hood and a gelatin filter holder at the rear.