I've been using my a7s with a metabones adapter and my rokinon cinema primes since I bought the camera, and they work great, but I've been looking into buying a native lens for the camera for when I'm traveling and want to use fast and reliable auto focus when taking stills.
The 24-70 FE would be ideal because of the zoom/fixed aperture, but the only lens I've ever really heard good things about is the 55mm. Anyone use any of these lenses and have one to recommend?