When Sony announced the RX1 it both excited and intrigued photographers around the globe, it was a bold step and a unique offering. With all their experience not even Leica, or Fujifilm, have attempted to meld a fixed high-quality, high-speed prime with a full-frame sensor in such a compact form. The result is a highly attractive, if somewhat pricey, camera of uncompromising quality. The Zeiss designed, Sony made lens is an integral part of that. Its optical performance is outstanding, and particularly noteworthy for its consistent sharpness and homogenous imaging across the frame. With excellent image quality at maximum aperture becoming outstanding at f/2.8 and on, the Zeiss Sonnar T* 2/35 is likely to become a classic, against which all others are judged. Of course the lens can only be obtained with the purchase of the RX1, a camera that is not entirely without its own quirks and shortcomings. In spite of this, if you have the money to invest, then close to perfect imagery is assured.