The Thypoch Simera 28mm f1.4 Lens for Leica M features a robust, aluminium build and a large f1.4 aperture for superb low-light performance and depth of field control. With a tactile manual aperture ring and a focus tab, it offers smooth and precise adjustments. The optical design features extra-low dispersion, aspherical, and high-refractive index elements, resulting in sharp, high-quality images with minimal chromatic aberration.