Ultra-wide angle lenses have always been in demand by architectural, corporate, and other top pro photographers. This new lens features completely redesigned optics including 2 high-precision Aspherical elements and two totally new UD-glass elements. The result is superior image quality: better contrast and sharpness at the outer edges, and a reduction in chromatic aberrations that can sometimes be seen with high-resolution digital SLRs. Its diagonal angle of view is an impressive 114-anything larger would be a Fisheye lens. It has a built-in lens hood, and has been dust- and moisture- proofed. The lens uses a rear focusing system, high-speed CPU, and a powerful ring-type USM with revised electronics for faster, more responsive AF. This lens continues the proud tradition of superior clarity optics found in L-series Canon lenses.
| Focal Length & Maximum Aperture | 14mm f/2.8 |
| Lens Construction | 14 elements in 11 groups |
| Diagonal Angle of View | 114 (on full-frame cameras) |
| Focus Adjustment | AF with full-time manual |
| Closest Focusing Distance | 7.9 in. / 0.2m |
| Filter Size | Gel filter holder at rear of lens |
| Max. Diameter x Length, Weight | 3.2 in. x 3.7 in. / 80mm x 94mm 22.8 oz./645g (lens only) |