The Sigma 135mm f1.8 DG HSM is a telephoto lens which provides ultra-high resolution, bringing the best out of 50MP+ ultra-high-megapixel DSLRs. In addition to this the 135mm focal length offers a strong perspective compression effect whereas the large diameter with F1.8 brightness delivers a striking bokeh. This lens provides its users with fabulous contrast and sharp image quality in every shot thanks to minimising axial chromatic aberration. Through the incorporation of the complete reimagining of the lens, optical glass as well as SIGMA's innovations in design the user can enjoy exceptional edge to edge image quality that establishes new standards in 135mm telephoto lenses. For Sony's full-frame mirrorless bodies.