When unpacking makes the lens in spite of plastic finishes a very sophisticated look. The plastic bayonet does not really bother. The first screen test went very well indoors, if the sharpness not quite get there to the FA 43 / 1.9. The next day, nice weather, so get out and some photos were taken. Between f = 1.8 and f = 3.5, there were massive purple or green seams in backlight. We have all heard of other lichstarken lenses. That is, however, so hard, I did not think. Have the lens does not keep. I am 43 / 1.9 easily spoiled by FA. The gegenlichfestigkeit seems to be quite good.