9 elements in 7 groups
SD glass: Two elements
Coatings: Multi-layer
Angle of view: 8°20'
Minimum focus distance: 2.4m (7.9ft)
Focusing system: Internal focusing system
Filter size: 112mm/35.5mm
Maximum outer diameter: 117mm (4.5")
Overall length: 187mm (7.3")
Weight: 2,300g (80.0oz)
Mount availability: Canon EOS, Minolta AF, Nikon-D