Lens Mount: Canon EF
Focal Length: 90mm
Maximum Aperture: f/2.8
Lens Construction: 6 elements in 5 groups
Diagonal Angle of View: 27º (without tilt or shift)
Focus Adjustment: Manual focus, Overall linear extension system
Closest Focusing Distance: 0.5m / 1.6 ft.
Filter Size: 58mm
Max. Diameter x Length, Weight: 2.9\" x 3.5\", 1.2 lbs. / 73.6 x 88.0mm, 565g