" http://www.amazon.com/gp/product/B00009R6WY?tag=httpblogtrave-20
Ring-type UltraSonic Motor USM
f14 maximum aperture
Inner focusing floating system aspherical lens full-time manual focus
EF mount and wide-angle lens
The focal length is 35mm
EF mount wide-angle lens
Canon EF 35mm f/1.4L USM Wide Angle Lens for Canon SLR Cameras"