After the very positive experience with the SIGMA A 35 / 1.4 I was very excited about the 24er. And I was not disappointed. However, I was not surprised (again). Even the 24er is how the 35s, better than the Nikon counterpart. But the distance is not quite as dramatic as in the 35s. The SIGMA 24 / 1.4 is just as perfect color corrected as 35x. But in resolution, coma and astigmatism, it is not quite the performance of 35 / 1.4 from the same manufacturer to it, although it draws very harmoniously and without gross weaknesses. Even with SIGMA probably applies: A 35er and a few steps back are the better 24er. Only some things work with just only 24 millimeters.