The 50 for 550 Euros was tested on the Z6 at the beginning of the year, now the test on the Z7 with similar results: the centre of the image already delivers a good result when open - however, the edge drop is clearly visible. At aperture 3.5 it plays only a minor role and decreases further at aperture 5.6. At the same time, the values for the centre of the image increase - recommended.
