Sigma 24-105mm f/4 DG OS HSM Art Lens for Nikon FProduct Description: The definition of versatility, the Nikon F mount 24 105mm f 4 DG OS HSM from Sigma is an Art series zoom covering a useful wide angle to short telephoto range. Featuring a constant f 4 maximum aperture, this lens strikes an ideal balance between a portable form factor along with a bright enough design for working in available lighting conditions. Complementing this design, an Optical Stabilizer helps to minimize the appearance of