The Sigma APO 120-400mm F5-5.6 DG OS Lens enables an approximate 4 stops slower shutter speed. These telephoto zoom lenses have three special low dispersion glass elements, which are useful for excellent correction of chromatic aberration. While focusing, fluctuation of aberration is minimized by the rear focus system of the lens.

• Throughout the entire zoom range, you can achieve the optimum image quality with these Nikon telephoto zoom lenses
• The multi layer coating of the Sigma APO 120-400mm F5-5.6 DG OS Lens helps reduce flare and ghosting considerably
• The minimum distance between the object and the lens is 150cm
• The maximum magnification ratio 1:4.2 makes the lens ideal for close-up photography
• The filter size used in these Nikon telephoto zoom lenses is 77mm
• The lens consists of 21 elements which are divided into 15 groups
• The length of these telephoto zoom lenses is 8" and the maximum diameter is 3.6"
• The Sigma APO 120-400mm F5-5.6 DG OS Lens comes with two-touch zoom and focus control and a removable tripod collar
• The angle of view of the lens is between 20.4 to 6.2 degrees and it weighs 61.7 oz