Complex sentence: On 3 May 2016 Samyang announced their first two autofocus lenses: the 14mm f/2.8 and the 50mm f/1.4 full-frame lenses, available only for Sony E-mount.
Split into simpler sentences: On 3 May 2016 Samyang announced their first two autofocus lenses. These two are the 14mm f/2.8 and the 50mm f/1.4 full-frame lenses with the Sony E-mount.