Lens Mount: Canon EF
Focal Length: 16 to 35mm (35mm Equivalent Focal Length: 25.6 to 56mm)
Filter Size:82mm
f/Stop Range: 2.8-22
Maximum Aperture: f/2.8
Minimum Focus Distance: 0.9' (28cm)
Minimum Aperture: f/22
Magnification: 1:4.5
Zoom/Focus Control: Two-touch
Angle of View: 108-63°
Groups/Elements: 12/16
Diaphragm Blades: 7
Length: 4.4\" (112mm)
Format Compatibility: Full-Frame
Maximum Diameter: 3.5\" (88mm)
Maximum Magnification: 0.22x
Focus Type: Autofocus
Dimensions: (ø x L) 3.48 x 4.39\" / 88.39 x 111.51 mm
Weight: 1.4 lb (635g)