Offering an ultra-wide field of view, the AF 18mm f/2.8 FE from Samyang is also distinguished by its especially compact and lightweight design. The rectilinear wide-angle design is well-suited for landscape, architecture, and interior subjects, as well as being suitable for astrophotography applications. Its optical design includes a series of aspherical, high refractive index, and extra-low dispersion elements, which reduce a variety of aberrations in order to produce well-controlled, sharp, and clear imagery. An Ultra Multi-Coating has also been applied to individual elements to suppress flare and ghosting for improved contrast and color accuracy.