Photokina 2016 changed the situation as Olympus presented its M Zuiko Digital ED 25 mm f/1.2 PRO, a standard lens with a really good aperture fastness. Its optical construction is really impressive, with as many as 19 elements. We were really curious how it would fare in our tests.
weaker lateral chromatic aberration correction than that of rivals; noticeable spherical aberration; too high astigmatism; problems with performance against bright light