The Sigma 70-200mm F2.8 DG OS HSM Sports Lens is a flexible telephoto zoom characterized by its clear and refined design. Its fast and constant F2.8 aperture excels in low light conditions and offers more control over depth of field for isolating your subject. Its optical layout uses 10 impressive low dispersion elements to highly reduce chromatic aberrations for better brightness and color accuracy. 

The lens is also stabilized. It has a filter size of 82 mm and it weighs 1.8 kg. The lens has 11 rounded aperture blades and consists of 24 elements in 22 groups. The lens dimensions are 94.2 x 202.9 mm. 

Attention: If you would like to check the compatibility of this lens with various camera bodies, you can use this link .