Combining a versatile 55mm focal length with a bright f18 maximum aperture this prime lens produces stunning portraits nature studies and more high perfomance zeiss optics ensure outstanding resolution and contrast while a dust and water resistant design gives you peace of mind when shooting outdoors coupled with a full frame e mount camera from sony this lens delivers big camera performance in a remarkably compact easy to handle package crafted by zeiss founded in 1846 zeiss ag is a