Just trolling these threads and happened upon the Voigtlander angle. Took delivery of my A7R3 late 12-2017. Using the monsterously heavy 24-70 2.8. BUT as part of my kit, I purchased the Voight 15 4.5 and the 40 1.2. Came from Leica SL (using M lenses) and I will say without a doubt, these 2 lenses on the A7R3 transforms the camera for me into something than another AF heavyweight. Both lenses super sharp, and the 40 shot at 1.2 is super easy to achieve accurate focus using peaking. I need the fast and accurate AF for certain jobs, but for slow, deliberate architecture, or more esoteric environmental portraits (with the 40), there’s nothing more enjoyable.
Also purchased the A6500, making the Voigt’s a 22 mm wideangle and a 60 short tele. Perfectly balanced camera and wonderful quality. Super easy to manual focus.