Every time I buy glass with an EF-M mount, I think "well, why am I doing this, again there will be a plastic toy, not a lens." And every time I realize that I'm wrong. Of course, this is not a L-optic on a full frame, but this lens works honestly for all the money it costs. First, about the merits. It is lightweight and compact, with fast autofocus. Good bokeh. The picture is pleasing to the eye, there are no flaws and jambs that catch the eye. It is well-designed, it does not outweigh anything See full review