The Samyang 12 mm f/2.0 NCS CS is an ultra-wide angle lens specifically designed for APS-C mirrorless cameras. It is fully manual, i.e. there are no electronic contacts between the lens and the camera body. The 12mm focal length yields an 18mm equivalent field-of-view, which is great for landscapes or architectural photography. With a max. aperture of f/2, this lens is also an attractive option for astro photography.
The Olympus M.Zuiko Digital 45mm 1:1.8 is a short telephoto lens for the Micro Four Thirds system. The combination of an equivalent focal length of 90mm and a large max. aperture of f/1.8 makes this lens perfect for portraits.
Not only is this lens a stellar performer, it is also super lightweight, compact and cheap.