A7s low light AF speed?
Took my A7 to a wedding reception and was frustrated by the slow hunting of the A7 in low light. I am considering upgrading to A7s especially for the better low light abilities and -4EV autofocus. What is not clear is although it's AF can go down to -4EV, no one seems to have said how fast it is in that sort of lighting? eg similar to day light AF speed or slows way down?
Can anyone comment on the speed and hunting of the AF on the A7s in low light? Is it much superior to the A7/A7R?
Would like to see some example videos of the AF speed in low light but so far haven't seen any.