Backlighting is a tough situation for using an EVF finder. Because there is a strong light from behind entering the camera, the finder is fooled by it and darkens the image in the EVF to compensate. This leaves the main subject, the model's face, very dark making it extremely difficult to manually focus on it. Fortunately, the X cameras have a solution for this. On the Screen set-up menu there is a "Preview exposure in manual mode" with an ON/OFF option. Setting it to ON means the EVF/LDC brightness will correspond to the exposure setting in manual mode. This is very helpful in a situation like the one below because you can actually see when the correctly balanced exposure as you adjust the shutter speed or lens aperture with the camera in manual mode.
Of course in the very near future I won't have to use my 50mm Summicron as my main lifestyle lens because the Fuji 56mm f/1.2 will be available and do the same thing, but with auto focus. Can't wait.