This is a wide-angle lens from Sony for full-frame cameras siutable for street shooting,travel and event photography.With a constant aperture of f/4, this lens offers control over focus position for shallow depth of field techniques.
It features four aspherical elements that reduce spherical aberrations and distortion.Other feaures include:Rounded 9-Blade Diaphgram, Internal Focus Design,Optical SteadyShot Image Stabilization, Focus Hold Button among others.