This lens features a large aperture and compact size. The first lens group moves for rear focusing. And sharp, crisp pictures are obtained at all apertures. The background blur is ideal for portraits. The USM autofocuses the lens quickly and quietly.

Focal length and maximum aperture: 100 mm 1:2
Lens construction: 8 elements in 6 groups
Diagonal angle of view: 24°
Focus adjustment: Rear focusing system with USM
Closest focusing distance: 0.9m / 3ft
Filter size: 58mm