Walimex Pro 12 mm for Sony e-mount body is a manual lens. The A6000 provides focus peeking and if it is set to 100% then focusing is super easy. I have used it to take pictures of my kid and I am satisfied with the clarity. So the setup is as follows.
Equipment: Walimex Pro @ f/11, 30 sec, ISO 100, Tripod
Location: Bridge in Hadern over the A 96, 22:00 o'clock
Cold and clear