Lens Mount: Canon EF

Focal Length: 14mm

Maximum Aperture: 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)