Canon EF 16-35mm f/2.8L II USM Ultra Wide Angle Lens Kit w/ Pro 100 & 50-Pack Paper

Focal Length & Maximum Aperture: 16-35mm f/2.8
Lens Construction: 16 elements in 12 groups
Diagonal Angle of View: 108 degrees -63 degrees
Focus Adjustment: AF with full-time manual
Closest Focusing Distance: 0.92 ft./0.28m
Filter Size: 82mm, P=0.75mm/1 filter
Max. Diameter x Length, Weight: 3.5 in. x 4.4 in./ 88.5mm x 111.6mm