The new lens is intended for users of Sony's full-frame Alpha mirrorless cameras, which currently comprise all models in the A7 and A9 stables.
Read more: Sony A9 review
While many of Samyang's lenses are manual-focus only, the AF 35mm f/1.4 FE is fitted with an autofocus motor that promises fast, precise and quite AF performance.
Billed as "the excellent companion to create artworks from everyday moments," the new arrival joins the company's existing AF 14mm f/2.8 FE and AF 50mm f/1.4 FE optics, as well as the AF 35mm f/2.8 FE that was announced in June this year. All four models include their own focusing motor.
As a wide-aperture lens developed for full-frame users, the optic is expectedly endowed with a number of special elements. These include two aspherical and two high-refractive elements, together with Ultra Multi Coating to help boost light transmission and keep aberrations low. Samyang claims that the optical formula allows "absolute resolution across the entire image field."
Full specs of the new lens have not been made available yet, although images show a deep focusing ring and a smart, streamlined design. It also appears to come with a removable, petal-shaped lens hood.
Read more: The best mirrorless cameras in 2017
Samyang AF 35mm F1.4 FE release date and price
The Samyang AF 35mm F1.4 FE will be available from November with an SRP of £599.
The optic joins many other recent third-party arrivals for users of Sony's popular mirrorless system, which include the new Laowa 15mm f/2 FE Zero-D and options from the likes of Zeiss and Voigtländer.