by Phil Ryan » Thu Jan 03, 2019 7:54 pm
The AF assist can be turned on manually on the A1 (page 2 of the menu), but I don’t think the auto function can be made to work as it requires communications from the camera that I don’t think Air/TTL supports. I believe the AF assist status is transmitted via the hot shoe accessory pins for the Nikon (and Cannon) systems.