The previously rumored TTartisan 50mm f/1.2 mirrorless lens for Sony E, Canon EOS M, Fuji X, and MFT will be officially announced tomorrow. This is the second APS-C lens from TTartisan after the 35mm f/1.4 lens (available in the online store). TTartisan also has a 17mm f/1.4 lens coming next. Here are the technical details of the new lens - additional coverage is coming tomorrow:
Update: the lens is now officially announced.