This ultra-wide-angle lens, which has a diagonal angle of view greater than 90°, produces extraordinary images. Distortion has been kept to a measured value of zero, with sharpness right across the frame, even when the subject is near the edges. Ideally suited to landscape and architectural photography, the minimum working distance of 18cm also enables close-up shots. Plus, the distance indicator and depth-of-field scale for pre-focusing in MF mode mean it’s great for quick snapshots, too.