Fast aperture super telephoto 400mm f2.8 lens that is ideal for sports photography. A new optical design delivers crisp, high-contrast images, and features ultra-quiet Autofocus performance, Vibration Reduction II to combat the effect of camera shake at slow shutter speeds, and practical close focusing capabilities. Designed for digital, this lens includes a Nano Crystal coating, ED glass and rounded diaphragm blades to produce images full of detail with excellent out of focus characteristics.