The Tokina 70-200mm f/4 AT-X PRO FX VCM-S is a telephoto zoom lens designed for FX- and DX-sensor Nikon DSLRs. Key features include:

Compact Telephoto Zoom. The 70-200mm focal length is a popular choice for sports and portrait photography. This lens supports full- and crop-sensor cameras. You get a focal length equivalent to 105-300mm on the latter.

Constant f/4 Aperture. The f/4 aperture provides flexibility to shoot in moderately low light, although night-time sporting events will probably require a jump to one of the 70-200mm f/2.8 options.

VCM Image Stabilization. The voice coil motor-driven stabilizer offers up to three stops of correction, enabling you to shoot hand-held at slower shutter speeds without having to worry about camera shake.

Ring-Type Ultrasonic Autofocus Motor. Gives you fast, nearly silent performance for still and video use. The internal-focusing design allows the lens to maintain the same overall form factor regardless of focus distance.

High-Quality Optics. This lens uses three super-low dispersion elements to minimize aberrations and distortion, while multi-layer lens coatings reduce lens flare and ghosting for color accuracy and clarity.