Other extreme wide angles are the voigtlander 10mm f 5 6 prime sony the irix 11mm f 4 canon nikon canon 11 24mm f 4 and newly announced samyang xp 10mm f 3 5 canon nikon.
10mm full frame lens canon.
F 3 5 to f 22 3 aspherical 1 hr 3 ed elements ultra multi coating manual focus design aluminum alloy lens housing seven blade diaphragm built in petal shaped lens hood.
The rokinon 10mm f2 8 ultra wide angle lens provides the widest angle of view of any of the highly regarded rokinon prime rectilinear non distorted wide angle lenses.
This world class prime lens yields extraordinary image quality for 50 megapixel photos and 8k 8192 x 4320 video productions.
The rokinon special performance sp 10mm f 3 5 is the widest full frame rectilinear prime lens currently available for canon ef mount cameras.