Sigma USB Dock - Nikon F Mount Film Size_120 and uses multi-coated lens elements

and uses multi-coated lens elements that minimize ghosts and flare to further enhance its optical performance

affording a constant maximum aperture of f/4 along with rugged construction for maximum versatility

It lays down precise 4 picoliter-size ink droplets to produce sharp detail and excellent image quality

edge-to-edge sharpness and high contrast with the AF-S NIKKOR 50mm f1

XP2 has a nominal rating of ISO 400/27

Sigma USB Dock - Nikon F Mount Film Size_120 and uses multi-coated lens elementsBy connecting the USB cable to a computer, SIGMA USB DOCK enables photographers to update the lens firmware and adjust parameters such as focus. The adjustment is processed with special software (SIGMA Optimization Pro). The AF speed, focus limiter and OS function are also customizable for Sports lenses.