The Actus is versatile. I have two mounting options for mine--Sony and Olympus mft. I sold my A7. I am thinking about buying a used A7r II or at least renting one. It's easy to change the camera mount. And there are several options available for lens mounts too. It's a nifty little tech camera. Steve Hendrix at CI knows just about all there is to know about all of the configurations. I recently purchased the Cambo Actar 24mm lens and it's extremely sharp. The camera is also configurable for a MFD back.
