Canon EF 100mm F2.8L Macro IS USM

Overview
Canon's newest "L" series lens is its first mid-telephoto macro lens to include Canon's sophisticated Image Stabilization. With the highest quality optics available, combined with near-silent Ultrasonic focusing and life-size close-up capabilities without an adapter, the EF 100mm f/2.8L Macro IS USM is simply unrivalled.
Specifications

Lens
Focal Length & Maximum Aperture
100mm 1:2.8
Lens Construction
15 elements in 12 groups
Diagonal Angle of View
23.4¡
Focus Adjustment
Inner focusing system with USM. Full-time manual focus available.
Closest Focusing Distance
0.99 ft./0.3m (maximum close-up magnification: 1x)
Filter Size
67mm
Max. Diameter x Length, Weight
3.1 x 4.8 in./77.7 x 123mm, 22.0 oz./625g