The sony fe 28mm f2 lens is an excellent choice as a second lens to supplement a basic lens kit this full frame 28mm wide angle prime features a bright f20 maximum aperture and outstanding overall optical performance advanced optics deliver excellent sharpness right out to the image edges plus beautifully smooth bokeh when needed a maximum aperture of f20 makes it easier to shoot clear images handheld indoors or in dim lighting an inner focus mechanism achieves stable quiet autofocus oper