You don't have to play with it and test it. Just shoot right away, thinking only about the artistic component. It is lighter than 50/1.2 and even more so 50/1.8. I did not notice differences in shades and color from Canon optics, everything is excellent. At 1.4 it is sharp, fast and accurate, even at distances of 20-25 it highlights an object in space. It sits perfectly in the hands with a hood, is light and compact (I use it with the M5).
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