Although I got my Canon 100L macro lens for long, but the full frame body is too heavy and never bring it for non-working activities. New buying a 35mm macro lens for Sony, which is around 50mm when used in shooting, while the sharpness is really great and handy with the a7.
I think it is good to shooting the macro stuff with the lens and the tilt-able monitor of a7, make it so convenient to shoot in a low angle.