The Sony FE 4/20-70 mm G shows weaknesses at the edges at the shorter focal lengths. However, stopping down solves the problem. All in all, the result is very solid with good to very good measured values, a very attractive focal length range from 20 mm and a high utility value - clearly recommended.

.. A small weak point, if you want to call it that, is the maximum open aperture of f/4, which is available over the entire focal length range. This is more than enough in good lighting conditions, but in dim light a longer exposure time or a higher light sensitivity of the sensor must help...