The Sony FE 85mm F/1.8 is a short portrait lens that was specially designed for the full frame Sony E series. At its maximum aperture of F/1.8, this lens is perfect for use in low light environments or if you want to retain extensive control over the depth of field. The lens construction of 9 elements in 8 groups contributes to reducing spherical and chromatic aberration. The FE 85mm is equipped with an adjustable focus button that lets you control the focus to a T. The AF motor ensures this focus is fast, silent and smooth.