16 elements in 10 groups
SD glass: One elements
Coatings: Multi-layer
Angle of view: 29° 50’ to 6°13’
Minimum focus distance: 2.5m (8.2 ft.)
Reproduction ratio: 1: 5.4
Zooming system: Rotary type
Number of diaphragm blades: 8
Filter size:  72mm
Maximum outer diameter: 77.2mm (3.0in.)
Overall length: 136mm (5.4in.)
Weight: 1050 g (37.0 oz..)

Mount availability: Canon EOS, Minolta AF, Nikon-D