question about focusing speed of the sony 135 1.8

Hi Robert, that's exactly how I feel, 70-400G is totally different lens now. It's almost as quick as Sony 300/2.8 G (first version) that I briefly tested. My 70-200G doesn't have much AF speed boost, my Tamron 70-300 USD feels bit slower than before. Weird? Maybe but I set AF speed to "slow" maybe I need to switch to "fast" and see if that will make any difference.

Sorry to Alanlinde too. Yes the 135/1.8 prime behaves the same as my previous A55/900. Decent but not super fast.