Combining a vintage feel with high-quality modern optics, the Simera 21mm f/1.4 Lens brings an expansive, wide-angle perspective to Thypoch's full-frame Simera lens series. Embodying optical refinement, the Simera 21mm contains two aspherical, three high-refractive index, and three extra-low dispersion elements that combine to minimize chromatic aberration and distortion. | Thypoch | | Simera 21mm f/1.4 Lens (Leica M, Black) | Best Buy