Explore the vast potential of ultra-wide-angle photography with the Irix 11mm f/4.0 Blackstone Lens for Canon Ef, a premium choice for professionals and enthusiasts alike. This full-frame rectilinear lens boasts an expansive 126-degree angle of view, allowing you to capture breathtaking landscapes, architectural marvels, and night skies with unparalleled scope and clarity.Crafted with precision, the Irix 11mm f/4.0 features an advanced optical design that includes four high refractive index elements, two extra-low dispersion (Ed) lenses, and three aspherical lenses. This combination effectively minimizes optical distortions to an impressively low 3.13%, setting a new standard in its class for image fidelity.The robust construction of the Blackstone version is encased in a solid aluminum alloy, ensuring durability and protection against the elements. Its special weather-sealing and dust-proof design make it an ideal companion for shooting in challenging outdoor conditions.