>>3199304Maybe start out with the Samyang 35mm F2,8. It's really affordable for a native E-mount lens.
Later on you can buy the really good stuff, like the Voigtlander 65mm APO lens.
http://www.fredmiranda.com/forum/topic/1451413/35#14172985It's currently the ultimate sharpness of the E-mount.
(The two Batis it is being compared to are not soft lenses! They are really, really sharp too, but the Voigtlander is in another league entirely)