Tamron - 20mm F/2.8 Di III OSD Macro 1:2 for Sony FE104F050SF
The 20mm F/2.8 Di III OSD M1:2 (Model F050) is fast handling and packs expressive power that is the signature of fixed focal lenses. Its the ideal first ultra wide-angle lens for any photographer. It is designed exclusively for mirrorless cameras. Light weight and compact, the Model F050 is extremely portable, ideal for situations where you need to travel light.
Click here for details, specs & description on brand site.