These high-performance lenses are optimised for film and digital film cameras with the Cooke Look, reduced lateral colour aberration and providing an organic bokeh look. The lenses are designed to provide maximum performance at full aperture with superior control of flare, distortion and spherical aberration. The optics feature a 1.8x squeeze factor for full frame formats up to a 2.7:1 aspect ratio and a 1.8:1 bokeh shape.