Ario Arioldi
Member
I have just done a very quick check with the new FW and the FE 35/1.4 in very low light. With the lens stopped down and using the back button AF I clearly see and hear that there is a first step in which the lens open up (not fully, probably just at f:2) to help focus and then closes again at the selected opening. I do not know if the complete AF routine or just the first step is performed with the lens wide open.