TTArtisan AF 27mm F2.8 Lens. TTArtisan AF 27mm F2.8 lens adopts the "STM+leading screw" stepping motor, which is small in size and smooth in focusing. A5000、A5100、A6000、A6100、A6300、A6400、A6500、A6600、NEX-3、NEX-3N、NEX-3R、NEX-5T、NEX-5R、NEX-5、NEX-5N、NEX-7、NEX5C、ZV-E 10、FX30.