The Micro Four Thirds mount Rokinon 35mm f/1.4 AS UMC Lens is a prime portrait-length lens designed for Micro Four Thirds sensors. Providing a 35mm-equivalent focal length of 70mm, this lens is well-suited to portraiture and other short telephoto situations. Its fast f/1.4 maximum aperture is further beneficial to working in low-light conditions and for greater control over selective focus and shallow depth of field effects.

Two high refractive index elements and one aspherical element have been incorporated into the optical design to minimize chromatic aberrations in order to produce sharper images. A UMC coating has also been applied to lens elements to reduce surface reflections and prevent lens flare and ghosting for improved light transmission and more contrast-rich imagery.