ramesesthe2nd wrote:
From what I have read online, Viltrox reverse engineerd Sony AF, like Sigma and Tamron used to do back in the DSLR days. If that is truly the case, their AF functionality is not guaranteed to work with new cameras and new firmware updates. I am sure Viltrox will put out a new patch soon to get things sort of working again. This is not a Sony problem, but a Viltrox problem.
I would say, first and foremost, it's a problem for the user.
My Sony A7 V should arrive by Wednesday. I don't have any Viltrox lenses, so I cannot verify/falsify it. Only Sony, Zeiss, Sigma, and Tamron. I'm still considering the TTArtisan 75 AF 2.0, since I loved it for the L-mount. But there shouldn't be any problems with Sigma/Tamron lenses, at least I haven't read anything about it so far.