Launched months ago on Kickstarter the new Kamlan 28mm f/1.4 APS-C E-mount manual focusing lens is now in Stock at Amazon US.
And this seems to be the best E-mount lens Kamlan has yet made. Marc Alhadeff from SonyAlphablog tested the lens a while ago and wrote:
The Kamlan 28mm F1.4 is a surprise and is certainly the best Kamlan lens produced so far. It gives very good results for numerous usages